public static extern void *clEnqueueMapBuffer(void *command_queue, void *buffer, bool blocking_map, cl_map_flags map_flags, size_t offset, size_t size, uint num_events_in_wait_list, void *event_wait_list, void **event_, cl_status_code *error_code);
public static extern void *clCreateBuffer(void *context, cl_mem_flags flags, size_t size, void *host_ptr, cl_status_code *error_code);
public static extern void *clCreateKernel(void *program, byte *kernel_name, cl_status_code *error_code);
public static extern void *clCreateProgramWithSource(void *context, int count, byte **strings, void *lengths, cl_status_code *error_code);
public static extern void *clCreateCommandQueue(void *context, void *device, cl_command_queue_properties properties, cl_status_code *error_code);
public static extern void *clCreateContext(void *properties, uint num_devices, void **devices, void *notify, void *user_data, cl_status_code *error_code);
