ocl: remove cl.hpp dependency (it is missed on Nvidia SDK and on some platforms)

modules/ocl/include/opencv2/ocl/private/opencl_utils.hpp

@@ -0,0 +1,110 @@
+/*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) 2010-2013, Advanced Micro Devices, Inc., all rights reserved.
+// Third party copyrights are property of their respective owners.
+//
+// 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 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*/
+
+#ifndef __OPENCV_OCL_PRIVATE_OPENCL_UTILS_HPP__
+#define __OPENCV_OCL_PRIVATE_OPENCL_UTILS_HPP__
+
+#include "opencv2/ocl/cl_runtime/cl_runtime.hpp"
+#include <vector>
+#include <string>
+
+namespace cl_utils {
+
+inline cl_int getPlatforms(std::vector<cl_platform_id>& platforms)
+{
+    cl_uint n = 0;
+
+    cl_int err = ::clGetPlatformIDs(0, NULL, &n);
+    if (err != CL_SUCCESS)
+        return err;
+
+    platforms.clear(); platforms.resize(n);
+    err = ::clGetPlatformIDs(n, &platforms[0], NULL);
+    if (err != CL_SUCCESS)
+        return err;
+
+    return CL_SUCCESS;
+}
+
+inline cl_int getDevices(cl_platform_id platform, cl_device_type type, std::vector<cl_device_id>& devices)
+{
+    cl_uint n = 0;
+
+    cl_int err = ::clGetDeviceIDs(platform, type, 0, NULL, &n);
+    if (err != CL_SUCCESS)
+        return err;
+
+    devices.clear(); devices.resize(n);
+    err = ::clGetDeviceIDs(platform, type, n, &devices[0], NULL);
+    if (err != CL_SUCCESS)
+        return err;
+
+    return CL_SUCCESS;
+}
+
+
+
+
+template <typename Functor, typename ObjectType, typename T>
+inline cl_int getScalarInfo(Functor f, ObjectType obj, cl_uint name, T& param)
+{
+    return f(obj, name, sizeof(T), &param, NULL);
+}
+
+template <typename Functor, typename ObjectType>
+inline cl_int getStringInfo(Functor f, ObjectType obj, cl_uint name, std::string& param)
+{
+    ::size_t required;
+    cl_int err = f(obj, name, 0, NULL, &required);
+    if (err != CL_SUCCESS)
+        return err;
+
+    param.resize(required);
+    err = f(obj, name, required, &param.at(0), NULL);
+    if (err != CL_SUCCESS)
+        return err;
+
+    return CL_SUCCESS;
+};
+
+} // namespace cl_utils
+
+#endif // __OPENCV_OCL_PRIVATE_OPENCL_UTILS_HPP__