commit d59e3d4ee21a78375883175bd583ec50965721fd
Author: Mario Hüttel <mario.huettel@gmx.net>
Date:   Mon Apr 16 21:02:23 2018 +0200

    bare skeleton created

diff --git a/.gitignore b/.gitignore
new file mode 100644
index 0000000..db885a0
--- /dev/null
+++ b/.gitignore
@@ -0,0 +1,3 @@
+*.o
+build
+*.user
diff --git a/CMakeLists.txt b/CMakeLists.txt
new file mode 100644
index 0000000..9c2032e
--- /dev/null
+++ b/CMakeLists.txt
@@ -0,0 +1,15 @@
+cmake_minimum_required(VERSION 2.8)
+
+set(CMAKE_MODULE_PATH "${CMAKE_SOURCE_DIR}/cmake")
+project(opencl-test)
+find_package(OpenCL REQUIRED)
+
+message(STATUS "OpenCL found: ${OPENCL_FOUND}")
+message(STATUS "OpenCL includes: ${OPENCL_INCLUDE_DIRS}")
+message(STATUS "OpenCL CXX includes: ${OPENCL_HAS_CPP_BINDINGS}")
+message(STATUS "OpenCL libraries: ${OPENCL_LIBRARIES}")
+
+add_executable(${PROJECT_NAME} "main.cpp")
+
+target_link_libraries(${PROJECT_NAME} ${OPENCL_LIBRARIES})
+include_directories(${PROJECT_NAME} ${OPENCL_INCLUDE_DIR})
diff --git a/cmake/FindOpenCL.cmake b/cmake/FindOpenCL.cmake
new file mode 100644
index 0000000..dc9249d
--- /dev/null
+++ b/cmake/FindOpenCL.cmake
@@ -0,0 +1,171 @@
+# Find OpenCL
+#
+# To set manually the paths, define these environment variables:
+# OpenCL_INCPATH    - Include path (e.g. OpenCL_INCPATH=/opt/cuda/4.0/cuda/include)
+# OpenCL_LIBPATH    - Library path (e.h. OpenCL_LIBPATH=/usr/lib64/nvidia)
+#
+# Once done this will define
+#  OPENCL_FOUND            - system has OpenCL
+#  OPENCL_INCLUDE_DIRS     - the OpenCL include directory
+#  OPENCL_LIBRARIES        - link these to use OpenCL
+#  OPENCL_HAS_CPP_BINDINGS - system has also cl.hpp
+
+FIND_PACKAGE(PackageHandleStandardArgs)
+
+SET (OPENCL_VERSION_STRING "0.1.0")
+SET (OPENCL_VERSION_MAJOR 0)
+SET (OPENCL_VERSION_MINOR 1)
+SET (OPENCL_VERSION_PATCH 0)
+
+IF (APPLE)
+
+	# IF OpenCL_LIBPATH is given use it and don't use default path
+	IF (DEFINED ENV{OpenCL_LIBPATH})
+		FIND_LIBRARY(OPENCL_LIBRARIES OpenCL PATHS ENV OpenCL_LIBPATH NO_DEFAULT_PATH)
+	ELSE ()
+		FIND_LIBRARY(OPENCL_LIBRARIES OpenCL DOC "OpenCL lib for OSX")
+	ENDIF ()
+
+	# IF OpenCL_INCPATH is given use it and find for CL/cl.h and OpenCL/cl.h do not try to find default paths
+	IF (DEFINED ENV{OpenCL_INCPATH})
+		FIND_PATH(OPENCL_INCLUDE_DIRS CL/cl.h OpenCL/cl.h PATHS ENV OpenCL_INCPATH NO_DEFAULT_PATH)
+		FIND_PATH(_OPENCL_CPP_INCLUDE_DIRS CL/cl.hpp OpenCL/cl.hpp PATHS ${OPENCL_INCLUDE_DIRS} NO_DEFAULT_PATH)
+	ELSE ()
+		FIND_PATH(OPENCL_INCLUDE_DIRS OpenCL/cl.h DOC "Include for OpenCL on OSX")
+		FIND_PATH(_OPENCL_CPP_INCLUDE_DIRS OpenCL/cl.hpp DOC "Include for OpenCL CPP bindings on OSX")
+	ENDIF ()
+
+ELSE (APPLE)
+
+	IF (WIN32)
+
+		# Find OpenCL includes and libraries from environment variables provided by vendor
+		SET(OPENCL_INCLUDE_SEARCH_PATHS)
+		SET(OPENCL_LIBRARY_SEARCH_PATHS)
+		SET(OPENCL_LIBRARY_64_SEARCH_PATHS)
+
+		# Nvidia
+		IF (DEFINED ENV{CUDA_INC_PATH})
+			SET(OPENCL_INCLUDE_SEARCH_PATHS ${OPENCL_INCLUDE_SEARCH_PATHS} $ENV{CUDA_INC_PATH})
+			SET(OPENCL_LIBRARY_64_SEARCH_PATHS ${OPENCL_LIBRARY_64_SEARCH_PATHS} $ENV{CUDA_LIB_PATH}/../lib64)
+			SET(OPENCL_LIBRARY_SEARCH_PATHS ${OPENCL_LIBRARY_SEARCH_PATHS} $ENV{CUDA_LIB_PATH}/../lib)
+		ENDIF()
+		IF (DEFINED ENV{CUDA_PATH})
+			SET(OPENCL_INCLUDE_SEARCH_PATHS ${OPENCL_INCLUDE_SEARCH_PATHS} $ENV{CUDA_INC_PATH})
+			SET(OPENCL_LIBRARY_64_SEARCH_PATHS ${OPENCL_LIBRARY_64_SEARCH_PATHS} $ENV{CUDA_PATH}/lib/x64/)
+			SET(OPENCL_LIBRARY_SEARCH_PATHS ${OPENCL_LIBRARY_SEARCH_PATHS} $ENV{CUDA_PATH}/lib/Win32/)
+		ENDIF()
+
+		# Intel SDK
+		IF (DEFINED ENV{INTELOCSDKROOT})
+			SET(OPENCL_INCLUDE_SEARCH_PATHS ${OPENCL_INCLUDE_SEARCH_PATHS} $ENV{INTELOCSDKROOT}/include)
+			SET(OPENCL_LIBRARY_64_SEARCH_PATHS ${OPENCL_LIBRARY_64_SEARCH_PATHS} $ENV{INTELOCSDKROOT}/lib/x64)
+			SET(OPENCL_LIBRARY_SEARCH_PATHS ${OPENCL_LIBRARY_SEARCH_PATHS} $ENV{INTELOCSDKROOT}/lib/x86)
+		ENDIF()
+
+		# AMD SDK
+		IF (DEFINED ENV{AMDAPPSDKROOT})
+			SET(OPENCL_INCLUDE_SEARCH_PATHS ${OPENCL_INCLUDE_SEARCH_PATHS} $ENV{AMDAPPSDKROOT}/include)
+			SET(OPENCL_LIBRARY_64_SEARCH_PATHS ${OPENCL_LIBRARY_64_SEARCH_PATHS} $ENV{AMDAPPSDKROOT}/lib/x86_64)
+			SET(OPENCL_LIBRARY_SEARCH_PATHS ${OPENCL_LIBRARY_SEARCH_PATHS} $ENV{AMDAPPSDKROOT}/lib/x86)
+		ENDIF()
+
+		# Override search paths with OpenCL_INCPATH env variable
+		IF (DEFINED ENV{OpenCL_INCPATH})
+			SET(OPENCL_INCLUDE_SEARCH_PATHS $ENV{OpenCL_INCPATH})
+		ENDIF ()
+
+		# Override search paths with OpenCL_LIBPATH env variable
+		IF (DEFINED ENV{OpenCL_LIBPATH})
+			SET(OPENCL_LIBRARY_SEARCH_PATHS $ENV{OpenCL_LIBPATH})
+			SET(OPENCL_LIBRARY_64_SEARCH_PATHS $ENV{OpenCL_LIBPATH})
+		ENDIF ()
+
+		FIND_PATH(OPENCL_INCLUDE_DIRS CL/cl.h PATHS ${OPENCL_INCLUDE_SEARCH_PATHS})
+		FIND_PATH(_OPENCL_CPP_INCLUDE_DIRS CL/cl.hpp PATHS ${OPENCL_INCLUDE_SEARCH_PATHS})
+		
+		FIND_LIBRARY(_OPENCL_32_LIBRARIES OpenCL.lib HINTS ${OPENCL_LIBRARY_SEARCH_PATHS} PATHS ${OPENCL_LIB_DIR} ENV PATH)
+		FIND_LIBRARY(_OPENCL_64_LIBRARIES OpenCL.lib HINTS ${OPENCL_LIBRARY_64_SEARCH_PATHS} PATHS ${OPENCL_LIB_DIR} ENV PATH)
+
+		# Check if 64bit or 32bit versions links fine
+		SET (_OPENCL_VERSION_SOURCE "${CMAKE_BINARY_DIR}${CMAKE_FILES_DIRECTORY}/openclversion.c")
+		#SET (_OPENCL_VERSION_SOURCE "${CMAKE_BINARY_DIR}/test.c")
+		FILE (WRITE "${_OPENCL_VERSION_SOURCE}"
+			"
+			#if __APPLE__
+			#include <OpenCL/cl.h>
+			#else /* !__APPLE__ */
+			#include <CL/cl.h>
+			#endif /* __APPLE__ */
+			int main()
+			{	
+			    cl_int result;
+			    cl_platform_id id;
+			    result = clGetPlatformIDs(1, &id, NULL);
+			    return result != CL_SUCCESS;
+			}
+			")
+
+		TRY_COMPILE(_OPENCL_64_COMPILE_SUCCESS ${CMAKE_BINARY_DIR} "${_OPENCL_VERSION_SOURCE}"
+			CMAKE_FLAGS
+			"-DINCLUDE_DIRECTORIES:STRING=${OPENCL_INCLUDE_DIRS}"
+			CMAKE_FLAGS
+			"-DLINK_LIBRARIES:STRING=${_OPENCL_64_LIBRARIES}"
+		)
+
+		IF(_OPENCL_64_COMPILE_SUCCESS)
+			message(STATUS "OpenCL 64bit lib found.")
+			SET(OPENCL_LIBRARIES ${_OPENCL_64_LIBRARIES})
+		ELSE()
+	  		TRY_COMPILE(_OPENCL_32_COMPILE_SUCCESS ${CMAKE_BINARY_DIR} "${_OPENCL_VERSION_SOURCE}"
+				CMAKE_FLAGS
+				"-DINCLUDE_DIRECTORIES:STRING=${OPENCL_INCLUDE_DIRS}"
+				CMAKE_FLAGS
+				"-DLINK_LIBRARIES:STRING=${_OPENCL_32_LIBRARIES}"
+	  		)
+			IF(_OPENCL_32_COMPILE_SUCCESS)
+				message(STATUS "OpenCL 32bit lib found.")
+				SET(OPENCL_LIBRARIES ${_OPENCL_32_LIBRARIES})
+			ELSE()
+				message(STATUS "Couldn't link opencl..")
+			ENDIF()
+		ENDIF()
+
+
+	ELSE (WIN32)
+
+		IF (CYGWIN)
+			SET (CMAKE_FIND_LIBRARY_SUFFIXES .lib)
+			SET (OCL_LIB_SUFFIX .lib)
+		ENDIF (CYGWIN)
+
+		# Unix style platforms
+		FIND_LIBRARY(OPENCL_LIBRARIES OpenCL${OCL_LIB_SUFFIX}
+			PATHS ENV LD_LIBRARY_PATH ENV OpenCL_LIBPATH
+		)
+
+		GET_FILENAME_COMPONENT(OPENCL_LIB_DIR ${OPENCL_LIBRARIES} PATH)
+		GET_FILENAME_COMPONENT(_OPENCL_INC_CAND ${OPENCL_LIB_DIR}/../../include ABSOLUTE)
+
+		# The AMD SDK currently does not place its headers
+		# in /usr/include, therefore also search relative
+		# to the library
+		FIND_PATH(OPENCL_INCLUDE_DIRS CL/cl.h PATHS ${_OPENCL_INC_CAND} "/usr/local/cuda/include" "/opt/AMDAPP/include" ENV OpenCL_INCPATH)
+		FIND_PATH(_OPENCL_CPP_INCLUDE_DIRS CL/cl.hpp PATHS ${_OPENCL_INC_CAND} "/usr/local/cuda/include" "/opt/AMDAPP/include" ENV OpenCL_INCPATH)
+
+	ENDIF (WIN32)
+
+ENDIF (APPLE)
+
+FIND_PACKAGE_HANDLE_STANDARD_ARGS(OpenCL DEFAULT_MSG OPENCL_LIBRARIES OPENCL_INCLUDE_DIRS)
+
+IF(_OPENCL_CPP_INCLUDE_DIRS)
+	SET( OPENCL_HAS_CPP_BINDINGS TRUE )
+	LIST( APPEND OPENCL_INCLUDE_DIRS ${_OPENCL_CPP_INCLUDE_DIRS} )
+	# This is often the same, so clean up
+	LIST( REMOVE_DUPLICATES OPENCL_INCLUDE_DIRS )
+ENDIF(_OPENCL_CPP_INCLUDE_DIRS)
+
+MARK_AS_ADVANCED(
+  OPENCL_INCLUDE_DIRS
+)
diff --git a/main.cpp b/main.cpp
new file mode 100644
index 0000000..c8a12f3
--- /dev/null
+++ b/main.cpp
@@ -0,0 +1,43 @@
+#include <iostream>
+#include <vector>
+#include <CL/cl.h>
+
+int main()
+{
+
+
+	cl_int error;
+
+	cl_uint platformIdCount = 0;
+	clGetPlatformIDs (0, nullptr, &platformIdCount);
+
+	std::vector<cl_platform_id> platformIds (platformIdCount);
+	clGetPlatformIDs (platformIdCount, platformIds.data(), nullptr);
+
+	std::cout << "Platform count: " << platformIdCount << std::endl;
+
+	cl_uint deviceIdCount = 0;
+	clGetDeviceIDs (platformIds [0], CL_DEVICE_TYPE_ALL, 0, nullptr,
+	    &deviceIdCount);
+	std::cout << "Device in Platform 0 count: " << deviceIdCount << std::endl;
+
+	std::vector<cl_device_id> deviceIds (deviceIdCount);
+	clGetDeviceIDs (platformIds [0], CL_DEVICE_TYPE_ALL, deviceIdCount,
+	    deviceIds.data (), nullptr);
+
+
+	const cl_context_properties contextProperties [] =
+	{
+	    CL_CONTEXT_PLATFORM,
+	    reinterpret_cast<cl_context_properties> (platformIds [0]),
+	    0, 0
+	};
+
+	cl_context context = clCreateContext (
+	    contextProperties, deviceIdCount,
+	    deviceIds.data (), nullptr,
+	    nullptr, &error);
+
+
+	return 0;
+}