libviennacl-dev 1.5.2-2 / usr / include / viennacl / ocl / infos.hpp

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#ifndef VIENNACL_OCL_INFOS_HPP_
#define VIENNACL_OCL_INFOS_HPP_

/* =========================================================================
   Copyright (c) 2010-2012, Institute for Microelectronics,
                            Institute for Analysis and Scientific Computing,
                            TU Wien.

                            -----------------
                  ViennaCL - The Vienna Computing Library
                            -----------------

   Project Head:    Karl Rupp                   rupp@iue.tuwien.ac.at

   (A list of authors and contributors can be found in the PDF manual)

   License:         MIT (X11), see file LICENSE in the base directory
============================================================================= */

/** @file viennacl/ocl/infos.hpp
    @brief Implementation of convenience functions to get infos
*/

#ifdef __APPLE__
#include <OpenCL/cl.h>
#else
#include <CL/cl.h>
#endif
#include <vector>
#include "viennacl/ocl/forwards.h"
#include "viennacl/ocl/error.hpp"

namespace viennacl{

    namespace ocl{

      /** @brief Implementation details for the OpenCL managment layer in ViennaCL */
    namespace detail{

    /** @brief Helper class for obtaining informations from the OpenCL backend. Deprecated! */
    template<typename T>
    struct info;

    /** \cond */
    template<>
    struct info<cl_mem>{
      typedef cl_mem_info type;
      static void get(cl_mem mem, cl_mem_info param_name,size_t param_value_size,void *param_value,size_t *param_value_size_ret){
          cl_int err = clGetMemObjectInfo(mem,param_name,param_value_size,param_value,param_value_size_ret);
          VIENNACL_ERR_CHECK(err);
      }
    };

    template<>
    struct info<cl_device_id>{
      typedef cl_device_info type;
      static void get(cl_device_id device, cl_device_info param_name,size_t param_value_size,void *param_value,size_t *param_value_size_ret){
          cl_int err = clGetDeviceInfo(device,param_name,param_value_size,param_value,param_value_size_ret);
          VIENNACL_ERR_CHECK(err);
      }
    };

    template<>
    struct info<cl_kernel>{
      typedef cl_kernel_info type;
      static void get(cl_kernel kernel, cl_kernel_info param_name,size_t param_value_size,void *param_value,size_t *param_value_size_ret){
          cl_int err = clGetKernelInfo(kernel,param_name,param_value_size,param_value,param_value_size_ret);
          VIENNACL_ERR_CHECK(err);
      }

      static void get(cl_kernel kernel, cl_device_id dev_id, cl_kernel_work_group_info param_name,size_t param_value_size,void *param_value,size_t *param_value_size_ret){
          cl_int err = clGetKernelWorkGroupInfo(kernel, dev_id, param_name,param_value_size,param_value,param_value_size_ret);
          VIENNACL_ERR_CHECK(err);
      }
    };

    template<>
    struct info<cl_context>{
      typedef cl_context_info type;
      static void get(cl_context context, cl_context_info param_name,size_t param_value_size,void *param_value,size_t *param_value_size_ret){
          cl_int err = clGetContextInfo(context,param_name,param_value_size,param_value,param_value_size_ret);
          VIENNACL_ERR_CHECK(err);
      }
    };

    template<>
    struct info<cl_program>{
      typedef cl_program_info type;
      static void get(cl_program context, cl_program_info param_name,size_t param_value_size,void *param_value,size_t *param_value_size_ret){
          cl_int err = clGetProgramInfo(context,param_name,param_value_size,param_value,param_value_size_ret);
          VIENNACL_ERR_CHECK(err);
      }
    };

    template<class RES_T>
    struct get_info_impl{

        template<class MEM_T, class INFO_T>
        RES_T operator()(MEM_T const & mem, INFO_T const & info){
            RES_T res;
            detail::info<MEM_T>::get(mem,info,sizeof(RES_T),&res,NULL);
            return res;
        }

        template<class MEM_T, class MEM2_T, class INFO_T>
        RES_T operator()(MEM_T const & mem, MEM2_T const & mem2, INFO_T const & info){
            RES_T res;
            detail::info<MEM_T>::get(mem,mem2, info,sizeof(RES_T),&res,NULL);
            return res;
        }
    };

    template<>
    struct get_info_impl<std::string>{

        template<class MEM_T, class INFO_T>
        std::string operator()(const MEM_T &mem, const INFO_T &info){
            char buff[1024];
            detail::info<MEM_T>::get(mem,info,1024,buff,NULL);
            return std::string(buff);
        }
    };

    template<class T>
    struct get_info_impl<std::vector<T> >{
        template<class MEM_T, class INFO_T>
        std::vector<T> operator()(const MEM_T &mem, const INFO_T &info){
            size_t vec_size;
            detail::info<MEM_T>::get(mem,info,0,NULL,&vec_size);
            std::vector<T> res(vec_size/sizeof(T));
            detail::info<MEM_T>::get(mem,info,vec_size,res.data(),NULL);
            return res;
        }
    };

    template<typename T, typename info<T>::type param>
    struct return_type;
    /** \endcond */

    /** \cond */
     #define SET_INFO_RETURN_TYPE(DATA_TYPE,NAME,RETURN_TYPE) template<> struct return_type<DATA_TYPE, NAME> { typedef RETURN_TYPE Result; }

     SET_INFO_RETURN_TYPE(cl_mem,CL_MEM_TYPE, cl_mem_object_type);
     SET_INFO_RETURN_TYPE(cl_mem,CL_MEM_FLAGS, cl_mem_flags);
     SET_INFO_RETURN_TYPE(cl_mem,CL_MEM_SIZE, size_t);
     SET_INFO_RETURN_TYPE(cl_mem,CL_MEM_HOST_PTR, void*);
     SET_INFO_RETURN_TYPE(cl_mem,CL_MEM_MAP_COUNT, cl_uint);
     SET_INFO_RETURN_TYPE(cl_mem,CL_MEM_REFERENCE_COUNT, cl_uint);
     SET_INFO_RETURN_TYPE(cl_mem,CL_MEM_CONTEXT, cl_context);

     SET_INFO_RETURN_TYPE(cl_program,CL_PROGRAM_REFERENCE_COUNT,cl_uint);

      SET_INFO_RETURN_TYPE(cl_device_id,  CL_DEVICE_ADDRESS_BITS, cl_uint);
      SET_INFO_RETURN_TYPE(cl_device_id,  CL_DEVICE_AVAILABLE, cl_bool);
      SET_INFO_RETURN_TYPE(cl_device_id,  CL_DEVICE_COMPILER_AVAILABLE, cl_bool);
//      SET_INFO_RETURN_TYPE(cl_device_id,  CL_DEVICE_DOUBLE_FP_CONFIG, cl_device_fp_config);
      SET_INFO_RETURN_TYPE(cl_device_id,  CL_DEVICE_ENDIAN_LITTLE, cl_bool);
      SET_INFO_RETURN_TYPE(cl_device_id,  CL_DEVICE_ERROR_CORRECTION_SUPPORT, cl_bool);
      SET_INFO_RETURN_TYPE(cl_device_id,  CL_DEVICE_EXECUTION_CAPABILITIES, cl_device_exec_capabilities);
      SET_INFO_RETURN_TYPE(cl_device_id,  CL_DEVICE_EXTENSIONS, std::string);
      SET_INFO_RETURN_TYPE(cl_device_id,  CL_DEVICE_GLOBAL_MEM_CACHE_SIZE, cl_ulong);
      SET_INFO_RETURN_TYPE(cl_device_id,  CL_DEVICE_GLOBAL_MEM_CACHELINE_SIZE, cl_uint);
      SET_INFO_RETURN_TYPE(cl_device_id,  CL_DEVICE_GLOBAL_MEM_SIZE, cl_ulong);
//      SET_INFO_RETURN_TYPE(cl_device_id,  CL_DEVICE_HALF_FP_CONFIG, cl_device_fp_config);
      SET_INFO_RETURN_TYPE(cl_device_id,  CL_DEVICE_IMAGE_SUPPORT, cl_bool);
      SET_INFO_RETURN_TYPE(cl_device_id,  CL_DEVICE_IMAGE2D_MAX_HEIGHT , size_t);
      SET_INFO_RETURN_TYPE(cl_device_id,  CL_DEVICE_IMAGE2D_MAX_WIDTH , size_t);
      SET_INFO_RETURN_TYPE(cl_device_id,  CL_DEVICE_IMAGE3D_MAX_DEPTH , size_t);
      SET_INFO_RETURN_TYPE(cl_device_id,  CL_DEVICE_IMAGE3D_MAX_HEIGHT , size_t);
      SET_INFO_RETURN_TYPE(cl_device_id,  CL_DEVICE_IMAGE3D_MAX_WIDTH , size_t);
      SET_INFO_RETURN_TYPE(cl_device_id,  CL_DEVICE_LOCAL_MEM_SIZE, cl_ulong);
      SET_INFO_RETURN_TYPE(cl_device_id,  CL_DEVICE_LOCAL_MEM_TYPE, cl_device_local_mem_type);
      SET_INFO_RETURN_TYPE(cl_device_id,  CL_DEVICE_MAX_CLOCK_FREQUENCY , cl_uint);
      SET_INFO_RETURN_TYPE(cl_device_id,  CL_DEVICE_MAX_COMPUTE_UNITS , cl_uint); //The minimum value is 1
      SET_INFO_RETURN_TYPE(cl_device_id,  CL_DEVICE_MAX_CONSTANT_ARGS  , cl_uint); //The minimum value is 8
      SET_INFO_RETURN_TYPE(cl_device_id,  CL_DEVICE_MAX_CONSTANT_BUFFER_SIZE   , cl_ulong); //The minimum value is 64 KB
      SET_INFO_RETURN_TYPE(cl_device_id,  CL_DEVICE_MAX_MEM_ALLOC_SIZE , cl_ulong); //The minimum value is max (1/4th of CL_DEVICE_GLOBAL_MEM_SIZE, 128*1024*1024)
      SET_INFO_RETURN_TYPE(cl_device_id,  CL_DEVICE_MAX_PARAMETER_SIZE  , size_t);
      SET_INFO_RETURN_TYPE(cl_device_id,  CL_DEVICE_MAX_READ_IMAGE_ARGS  , cl_uint);
      SET_INFO_RETURN_TYPE(cl_device_id,  CL_DEVICE_MAX_SAMPLERS , cl_uint);
      SET_INFO_RETURN_TYPE(cl_device_id,  CL_DEVICE_MAX_WORK_GROUP_SIZE , size_t);
      SET_INFO_RETURN_TYPE(cl_device_id,  CL_DEVICE_MAX_WORK_ITEM_DIMENSIONS  , cl_uint);
      SET_INFO_RETURN_TYPE(cl_device_id,  CL_DEVICE_MAX_WORK_ITEM_SIZES , std::vector<size_t>);
      SET_INFO_RETURN_TYPE(cl_device_id,  CL_DEVICE_MAX_WRITE_IMAGE_ARGS , cl_uint);
      SET_INFO_RETURN_TYPE(cl_device_id,  CL_DEVICE_MEM_BASE_ADDR_ALIGN  , cl_uint);
      SET_INFO_RETURN_TYPE(cl_device_id,  CL_DEVICE_MIN_DATA_TYPE_ALIGN_SIZE , cl_uint);
      SET_INFO_RETURN_TYPE(cl_device_id,  CL_DEVICE_NAME , std::string);
      SET_INFO_RETURN_TYPE(cl_device_id,  CL_DEVICE_PLATFORM , cl_platform_id);
      SET_INFO_RETURN_TYPE(cl_device_id,  CL_DEVICE_PREFERRED_VECTOR_WIDTH_CHAR  , cl_uint);
      SET_INFO_RETURN_TYPE(cl_device_id,  CL_DEVICE_PREFERRED_VECTOR_WIDTH_SHORT  , cl_uint);
      SET_INFO_RETURN_TYPE(cl_device_id,  CL_DEVICE_PREFERRED_VECTOR_WIDTH_INT  , cl_uint);
      SET_INFO_RETURN_TYPE(cl_device_id,  CL_DEVICE_PREFERRED_VECTOR_WIDTH_FLOAT  , cl_uint);
      SET_INFO_RETURN_TYPE(cl_device_id,  CL_DEVICE_PREFERRED_VECTOR_WIDTH_DOUBLE  , cl_uint);
      SET_INFO_RETURN_TYPE(cl_device_id,  CL_DEVICE_PROFILE , std::string);
      SET_INFO_RETURN_TYPE(cl_device_id,  CL_DEVICE_PROFILING_TIMER_RESOLUTION , size_t);
      SET_INFO_RETURN_TYPE(cl_device_id,  CL_DEVICE_QUEUE_PROPERTIES , cl_command_queue_properties);
      SET_INFO_RETURN_TYPE(cl_device_id,  CL_DEVICE_SINGLE_FP_CONFIG  , cl_device_fp_config);
      SET_INFO_RETURN_TYPE(cl_device_id,  CL_DEVICE_TYPE , cl_device_type);
      SET_INFO_RETURN_TYPE(cl_device_id,  CL_DEVICE_VENDOR , std::string);
      SET_INFO_RETURN_TYPE(cl_device_id,  CL_DEVICE_VENDOR_ID  , cl_uint);
      SET_INFO_RETURN_TYPE(cl_device_id,   CL_DEVICE_VERSION  , std::string);
      SET_INFO_RETURN_TYPE(cl_device_id,   CL_DRIVER_VERSION  , std::string);


      SET_INFO_RETURN_TYPE(cl_kernel,CL_KERNEL_FUNCTION_NAME, std::string);
      SET_INFO_RETURN_TYPE(cl_kernel,CL_KERNEL_NUM_ARGS, cl_uint);
      SET_INFO_RETURN_TYPE(cl_kernel,CL_KERNEL_REFERENCE_COUNT, cl_uint);
      SET_INFO_RETURN_TYPE(cl_kernel,CL_KERNEL_CONTEXT, cl_context);
      SET_INFO_RETURN_TYPE(cl_kernel,CL_KERNEL_PROGRAM, cl_program);


      SET_INFO_RETURN_TYPE(cl_kernel,CL_KERNEL_WORK_GROUP_SIZE, size_t);
//      SET_INFO_RETURN_TYPE(cl_kernel,CL_KERNEL_COMPILE_WORK_GROUP_SIZE, size_t[3]);
      SET_INFO_RETURN_TYPE(cl_kernel,CL_KERNEL_LOCAL_MEM_SIZE, cl_ulong);
#ifdef CL_KERNEL_PREFERRED_WORK_GROUP_SIZE_MULTIPLE
      SET_INFO_RETURN_TYPE(cl_kernel,CL_KERNEL_PREFERRED_WORK_GROUP_SIZE_MULTIPLE, size_t);
#endif

#ifdef CL_CONTEXT_NUM_DEVICES
      SET_INFO_RETURN_TYPE(cl_context, CL_CONTEXT_NUM_DEVICES, cl_uint);
#endif
      SET_INFO_RETURN_TYPE(cl_context, CL_CONTEXT_REFERENCE_COUNT, cl_uint);
      SET_INFO_RETURN_TYPE(cl_context, CL_CONTEXT_PROPERTIES, cl_context_properties);

      #undef SET_INFO_RETURN_TYPE

      /** \endcond */
    }

    template<cl_device_info param>
    typename detail::return_type<cl_device_id, param>::Result info(cl_device_id const & handle){
        typedef typename detail::return_type<cl_device_id, param>::Result res_t;
        return detail::get_info_impl<res_t>()(handle,param);
    }

    template<cl_mem_info param>
    typename detail::return_type<cl_mem, param>::Result info(cl_mem const & handle){
        typedef typename detail::return_type<cl_mem, param>::Result res_t;
        return detail::get_info_impl<res_t>()(handle,param);
    }
    template<cl_program_info param>
    typename detail::return_type<cl_program, param>::Result info(cl_program const & handle){
        typedef typename detail::return_type<cl_program, param>::Result res_t;
        return detail::get_info_impl<res_t>()(handle,param);
    }

//    template<cl_kernel_info param>
//    typename detail::return_type<cl_kernel, param>::Result info(cl_kernel const & handle){
//        typedef typename detail::return_type<cl_kernel, param>::Result res_t;
//        return detail::get_info_impl<res_t>()(handle,param);
//    }

//    template<cl_kernel_work_group_info param>
//    typename detail::return_type<cl_kernel, param>::Result info(cl_kernel const & handle, cl_device_id const & handle2){
//        typedef typename detail::return_type<cl_kernel, param>::Result res_t;
//        return detail::get_info_impl<res_t>()(handle,handle2,param);
//    }

    template<cl_context_info param>
    typename detail::return_type<cl_context, param>::Result info(cl_context const & handle){
        typedef typename detail::return_type<cl_context, param>::Result res_t;
        return detail::get_info_impl<res_t>()(handle,param);
    }

    template<class OCL_TYPE, typename detail::info<OCL_TYPE>::type param>
    typename detail::return_type<OCL_TYPE, param>::Result info(OCL_TYPE const & handle){
        return viennacl::ocl::info(handle.get());
    }

    }
}
#endif // INFOS_HPP

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