Dynamic OpenCL loader generator

Tested Platforms:

• Windows - tested with cmake generator for Visual Studio 2017, Win32 & Win64
• Apple OSX - tested with cmake generators for make/clang and xcode
• Android - tested with cmake generator for Visual Studio 2017 ARM64

Pending:

• Linux - in theory should work, but has not been tested

Prereqs:

• cmake 3.11 or greater
• if generating project for MSVS 2017 Android C++ worfklow - https://github.com/Reification/CMake/releases
• bash shell and shell tools
  • windows host - git bash
  • apple host - system bash
  • linux host - system bash
• for opencl1X if cl.hpp is needed, python 2.x
  • requirement inherited from OpenCL-HPP submodule to generate cl.hpp
  • cl2.hpp (opencl20 and above) does not have this requirement

Instructions:

• clone Repo
• create a build directory and run cmake from it
  • set OPENCL_VERSION to the name of any opencl header api directory (e.g. opencl12 or opencl20)
  • default value for OPENCL_VERSION is opencl12
  • set CMAKE_INSTALL_PREFIX to location of lib/ and include/ destination directories
• generate project, build INSTALL target
• header files will be under ${CMAKE_INSTALL_PREFIX}/OCDL/ (O)pen(C)L (D)ynamic (L)oader)
• include OCDL/opencl.h in one of your source files
• call initialize_opencl((const char*)0) before invoking any opencl functions
• profit

Licensing: See file LICENSE in the root of this repo