Question

如何在OpenCL事件回调中从cl_event类型创建cl :: Event对象？在OpenCL 2.0参考中有一个cl :: Event构造函数：

Event (const cl_event &event, bool retainObject=false)

在OpenCL 1.1中，只有继承的cl :: Event成员函数

Wrapper(const Wrapper<cl_event> & rhs)

这是我的回调函数：

void callback(cl_event ev, cl_int type, void *user_data)
{
    cl::Event event;
    event.Wrapper(cl::detail::Wrapper<cl_event>(ev));
}

编译错误：

main.cpp: In function 'void callback(cl_event, cl_int, void*)':
main.cpp:41:8: error: invalid use of 'cl::detail::Wrapper<_cl_event*>::Wrapper'
  event.Wrapper(cl::detail::Wrapper<cl_event>(ev));
        ^
main.cpp:41:48: error: no matching function for call to 'cl::detail::Wrapper<_cl_event*>::Wrapper(_cl_event*&)'
  event.Wrapper(cl::detail::Wrapper<cl_event>(ev));
                                                ^
main.cpp:41:48: note: candidates are:
In file included from main.cpp:23:0:
/usr/include/CL/cl.hpp:1106:5: note: cl::detail::Wrapper<T>::Wrapper(const cl::detail::Wrapper<T>&) [with T = _cl_event*]
     Wrapper(const Wrapper<cl_type>& rhs)
     ^
/usr/include/CL/cl.hpp:1106:5: note:   no known conversion for argument 1 from 'cl_event {aka _cl_event*}' to 'const cl::detail::Wrapper<_cl_event*>&'
/usr/include/CL/cl.hpp:1099:5: note: cl::detail::Wrapper<T>::Wrapper() [with T = _cl_event*]
     Wrapper() : object_(NULL) { }
     ^
/usr/include/CL/cl.hpp:1099:5: note:   candidate expects 0 arguments, 1 provided

由于

OpenCL 1.1 C ++绑定：在回调中从cl_event类型创建cl :: Event对象

0 个答案: