Add CMake files for root, gtest and CLW

Author: DenisBirukov

CLW/CMakeLists.txt

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+project(CLW CXX)
+
+set(SOURCES
+    CLWCommandQueue.cpp
+    CLWContext.cpp
+    CLWDevice.cpp
+    CLWEvent.cpp
+    CLWImage2D.cpp
+    CLWKernel.cpp
+    CLWParallelPrimitives.cpp
+    CLWPlatform.cpp
+    CLWProgram.cpp
+    ParameterHolder.cpp
+    ReferenceCounter.cpp)
+    
+add_library(CLW STATIC ${SOURCES})
+
+if (UNIX)
+    target_compile_options(CLW PUBLIC -std=c++11 -fPIC)
+elseif (APPLE)
+    target_compile_options(CLW PUBLIC -std=c++11 -stdlib=libc++)
+endif (UNIX)
+
+if (RR_ALLOW_CPU_DEVICES)
+    target_compile_definitions(CLW PUBLIC RR_ALLOW_CPU_DEVICES=1)
+endif(RR_ALLOW_CPU_DEVICES)
+
+target_link_libraries(CLW PUBLIC OpenCL::OpenCL)
+

CMakeLists.txt

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+cmake_minimum_required(VERSION 3.8)
+
+project(RadeonRays CXX)
+
+option(RR_EMBED_KERNELS "Embed CL kernels into binary module" OFF)
+option(RR_ALLOW_CPU_DEVICES "Allows CPU Devices" OFF)
+option(RR_USE_OPENCL "Use OpenCL for GPU hit testing" ON)
+option(RR_USE_EMBREE "Use Intel(R) Embree for CPU hit testing" OFF)
+option(RR_USE_VULKAN "Use vulkan for GPU hit testing" OFF)
+option(RR_NO_TESTS "Don't add any unit tests and remove any test functionality from the library" OFF)
+option(RR_ENABLE_STATIC "Create static libraries rather than dynamic" OFF)
+option(RR_SHARED_CALC "Link Calc(compute abstraction layer) dynamically" OFF)
+option(RR_ENABLE_RAYMASK "Enable ray masking in intersection kernels" OFF)
+option(RR_TUTORIALS "Add tutorials projects" OFF)
+option(RR_SAFE_MATH "use safe math" OFF)
+
+if (RR_SHARED_CALC AND RR_USE_VULKAN)
+    message(FATAL_ERROR "shared_calc option is not yet supported for Vulkan backend")
+endif (RR_SHARED_CALC AND RR_USE_VULKAN)
+
+#Find required packages
+find_package(Threads)
+
+if (RR_EMBED_KERNELS)
+    find_package(PythonInterp 2.7 REQUIRED)
+endif(RR_EMBED_KERNELS)
+
+if (RR_USE_OPENCL)
+    find_package(OpenCL REQUIRED)
+endif (RR_USE_OPENCL)
+
+if (RR_USE_VULKAN)
+    find_package(Vulkan REQUIRED)
+    add_subdirectory(Anvil)
+endif (RR_USE_VULKAN)
+
+if (RR_USE_OPENCL)
+    add_subdirectory(CLW)
+endif (RR_USE_OPENCL)
+
+#add_subdirectory(RadeonRays)
+#add_subdirectory(Calc)
+
+if (NOT RR_NO_TESTS)
+    add_subdirectory(Gtest)
+#    add_subdirectory(UnitTest)
+endif (NOT RR_NO_TESTS)
+
+if (RR_TUTORIALS)
+#    add_subdirectory(Tutorials)
+endif (RR_TUTORIALS)
+

Gtest/CMakeLists.txt

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+project(GTest)
+
+set(SOURCES
+    src/gtest-all.cc
+    src/gtest_main.cc)
+
+add_library(GTest STATIC ${SOURCES})
+
+target_include_directories(GTest PUBLIC include)
+target_include_directories(GTest PRIVATE .)
+target_link_libraries(GTest PUBLIC Threads::Threads)