Cleaned up the cmake file. Imports SFML, CL, and GL now.

But I'm not sure how well it will work on windows so I need
to test that out. Also added a stack overflow snippet to
check your compute devices and give their opencl version

CMakeLists.txt

@@ -1,30 +1,39 @@
-set(PNAME Game)
-
-set(SFML_ROOT root CACHE STRING "User specified path")
+# Check versions
+message(STATUS "CMake version: ${CMAKE_VERSION}")
+cmake_minimum_required(VERSION 3.1)
 
-set(SFML_VERSION 2.1)
+# Set the project name
+set(PNAME Game)
+project(${PNAME})
 
+# Set up variables, and find SFML
+#set(SFML_ROOT root CACHE STRING "User specified path")
 set(SFML_COMPONENTS graphics window system network audio)
-
-cmake_minimum_required(VERSION 3.0)
 set(CMAKE_MODULE_PATH ${CMAKE_CURRENT_SOURCE_DIR})
+find_package(SFML 2.1 COMPONENTS ${SFML_COMPONENTS} REQUIRED)
+message(STATUS "SFML found: ${SFML_FOUND}")
 
-project(${PNAME})
-find_package(SFML ${SFML_VERSION} COMPONENTS ${SFML_COMPONENTS} REQUIRED)
+# Find OpenCL
+find_package( OpenCL REQUIRED )
+message(STATUS "OpenCL found: ${OPENCL_FOUND}")
 
+# Find OpenGL
+find_package( OpenGL REQUIRED)
+message(STATUS "OpenGL found: ${OPENGL_FOUND}")
 
+# Include the directories for the main programs headers, and SFML's headers
 include_directories(${SFML_INCLUDE_DIR})
 include_directories(include)
+
+# Set the .cpp sources
 file(GLOB SOURCES "src/*.cpp")
 add_executable(${PNAME} ${SOURCES})
 
-# Handle OpenCL
-find_package(OpenCL REQUIRED)
-include_directories(${OpenCL_INCLUDE_DIRS})
-link_directories(${OpenCL_LIBRARY})
-
+# Link CL, GL, and SFML
 target_link_libraries(${PNAME} ${SFML_LIBRARIES} ${SFML_DEPENDENCIES})
-target_link_libraries (Game ${OpenCL_LIBRARY})
+target_link_libraries (${PNAME} ${OpenCL_LIBRARY})
+target_link_libraries (${PNAME} ${OpenGL_LIBRARY})
 
+# Setup to use C++11
 set_property(TARGET ${PNAME} PROPERTY CXX_STANDARD 11) # Use C++11
 

src/main.cpp

@@ -15,6 +15,23 @@ const int WINDOW_Y = 150;
 
 int main(){
 
+    cl_uint num_devices, i;
+    clGetDeviceIDs(NULL, CL_DEVICE_TYPE_ALL, 0, NULL, &num_devices);
+
+    cl_device_id* devices = (cl_device_id*)calloc(sizeof(cl_device_id), num_devices);
+    clGetDeviceIDs(NULL, CL_DEVICE_TYPE_ALL, num_devices, devices, NULL);
+
+    char buf[128];
+    for (i = 0; i < num_devices; i++) {
+        clGetDeviceInfo(devices[i], CL_DEVICE_NAME, 128, buf, NULL);
+        fprintf(stdout, "Device %s supports ", buf);
+
+        clGetDeviceInfo(devices[i], CL_DEVICE_VERSION, 128, buf, NULL);
+        fprintf(stdout, "%s\n", buf);
+    }
+
+    free(devices);
+
     // Get the number of platforms
     cl_uint platformIdCount = 0;
     clGetPlatformIDs(0, nullptr, &platformIdCount);