FM / compute

/usr/include/boost/compute

Name	Size	Mode	Actions
algorithm/	-	0755	rm
allocator/	-	0755	rm
async/	-	0755	rm
container/	-	0755	rm
detail/	-	0755	rm
exception/	-	0755	rm
experimental/	-	0755	rm
functional/	-	0755	rm
image/	-	0755	rm
interop/	-	0755	rm
iterator/	-	0755	rm
lambda/	-	0755	rm
memory/	-	0755	rm
random/	-	0755	rm
types/	-	0755	rm
type_traits/	-	0755	rm
utility/	-	0755	rm
algorithm.hpp	4399	0644	edit dl rm
allocator.hpp	748	0644	edit dl rm
async.hpp	703	0644	edit dl rm
buffer.hpp	6783	0644	edit dl rm
cl.hpp	1625	0644	edit dl rm
closure.hpp	10111	0644	edit dl rm
cl_ext.hpp	664	0644	edit dl rm
command_queue.hpp	62500	0644	edit dl rm
config.hpp	2359	0644	edit dl rm
container.hpp	1021	0644	edit dl rm
context.hpp	6594	0644	edit dl rm
core.hpp	1141	0644	edit dl rm
device.hpp	21203	0644	edit dl rm
event.hpp	10280	0644	edit dl rm
exception.hpp	858	0644	edit dl rm
function.hpp	12138	0644	edit dl rm
functional.hpp	1343	0644	edit dl rm
image.hpp	894	0644	edit dl rm
image2d.hpp	549	0644	edit dl rm
image3d.hpp	549	0644	edit dl rm
image_format.hpp	559	0644	edit dl rm
image_sampler.hpp	561	0644	edit dl rm
iterator.hpp	1140	0644	edit dl rm
kernel.hpp	17580	0644	edit dl rm
lambda.hpp	862	0644	edit dl rm
memory.hpp	717	0644	edit dl rm
memory_object.hpp	6994	0644	edit dl rm
pipe.hpp	4008	0644	edit dl rm
platform.hpp	7420	0644	edit dl rm
program.hpp	25342	0644	edit dl rm
random.hpp	1148	0644	edit dl rm
source.hpp	551	0644	edit dl rm
svm.hpp	1969	0644	edit dl rm
system.hpp	9388	0644	edit dl rm
types.hpp	870	0644	edit dl rm
type_traits.hpp	1106	0644	edit dl rm
user_event.hpp	2414	0644	edit dl rm
utility.hpp	823	0644	edit dl rm
version.hpp	665	0644	edit dl rm
wait_list.hpp	557	0644	edit dl rm

Edit: /usr/include/boost/compute/context.hpp (6594B)

//---------------------------------------------------------------------------//
// Copyright (c) 2013 Kyle Lutz <kyle.r.lutz@gmail.com>
//
// Distributed under the Boost Software License, Version 1.0
// See accompanying file LICENSE_1_0.txt or copy at
// http://www.boost.org/LICENSE_1_0.txt
//
// See http://boostorg.github.com/compute for more information.
//---------------------------------------------------------------------------//

#ifndef BOOST_COMPUTE_CONTEXT_HPP
#define BOOST_COMPUTE_CONTEXT_HPP

#include <vector>

#include <boost/throw_exception.hpp>

#include <boost/compute/config.hpp>
#include <boost/compute/device.hpp>
#include <boost/compute/exception/opencl_error.hpp>
#include <boost/compute/detail/assert_cl_success.hpp>

namespace boost {
namespace compute {

/// \class context
/// \brief A compute context.
///
/// The context class represents a compute context.
///
/// A context object manages a set of OpenCL resources including memory
/// buffers and program objects. Before allocating memory on the device or
/// executing kernels you must set up a context object.
///
/// To create a context for the default device on the system:
/// \code
/// // get the default compute device
/// boost::compute::device gpu = boost::compute::system::default_device();
///
/// // create a context for the device
/// boost::compute::context context(gpu);
/// \endcode
///
/// Once a context is created, memory can be allocated using the buffer class
/// and kernels can be executed using the command_queue class.
///
/// \see device, command_queue
class context
{
public:
    /// Create a null context object.
    context()
        : m_context(0)
    {
    }

/// Creates a new context for \p device with \p properties.
    ///
    /// \see_opencl_ref{clCreateContext}
    explicit context(const device &device,
                     const cl_context_properties *properties = 0)
    {
        BOOST_ASSERT(device.id() != 0);

cl_device_id device_id = device.id();

cl_int error = 0;
        m_context = clCreateContext(properties, 1, &device_id, 0, 0, &error);

if(!m_context){
            BOOST_THROW_EXCEPTION(opencl_error(error));
        }
    }

/// Creates a new context for \p devices with \p properties.
    ///
    /// \see_opencl_ref{clCreateContext}
    explicit context(const std::vector<device> &devices,
                     const cl_context_properties *properties = 0)
    {
        BOOST_ASSERT(!devices.empty());

cl_int error = 0;

m_context = clCreateContext(
            properties,
            static_cast<cl_uint>(devices.size()),
            reinterpret_cast<const cl_device_id *>(&devices[0]),
            0,
            0,
            &error
        );

if(!m_context){
            BOOST_THROW_EXCEPTION(opencl_error(error));
        }
    }

/// Creates a new context object for \p context. If \p retain is
    /// \c true, the reference count for \p context will be incremented.
    explicit context(cl_context context, bool retain = true)
        : m_context(context)
    {
        if(m_context && retain){
            clRetainContext(m_context);
        }
    }

/// Creates a new context object as a copy of \p other.
    context(const context &other)
        : m_context(other.m_context)
    {
        if(m_context){
            clRetainContext(m_context);
        }
    }

/// Copies the context object from \p other to \c *this.
    context& operator=(const context &other)
    {
        if(this != &other){
            if(m_context){
                clReleaseContext(m_context);
            }

m_context = other.m_context;

if(m_context){
                clRetainContext(m_context);
            }
        }

return *this;
    }

#ifndef BOOST_COMPUTE_NO_RVALUE_REFERENCES
    /// Move-constructs a new context object from \p other.
    context(context&& other) BOOST_NOEXCEPT
        : m_context(other.m_context)
    {
        other.m_context = 0;
    }

/// Move-assigns the context from \p other to \c *this.
    context& operator=(context&& other) BOOST_NOEXCEPT
    {
        if(m_context){
            clReleaseContext(m_context);
        }

m_context = other.m_context;
        other.m_context = 0;

return *this;
    }
    #endif // BOOST_COMPUTE_NO_RVALUE_REFERENCES

/// Destroys the context object.
    ~context()
    {
        if(m_context){
            BOOST_COMPUTE_ASSERT_CL_SUCCESS(
                clReleaseContext(m_context)
            );
        }
    }

/// Returns the underlying OpenCL context.
    cl_context& get() const
    {
        return const_cast<cl_context &>(m_context);
    }

/// Returns the device for the context. If the context contains multiple
    /// devices, the first is returned.
    device get_device() const
    {
        std::vector<device> devices = get_devices();

if(devices.empty()) {
            return device();
        }

return devices.front();
    }

/// Returns a vector of devices for the context.
    std::vector<device> get_devices() const
    {
        return get_info<std::vector<device> >(CL_CONTEXT_DEVICES);
    }

/// Returns information about the context.
    ///
    /// \see_opencl_ref{clGetContextInfo}
    template<class T>
    T get_info(cl_context_info info) const
    {
        return detail::get_object_info<T>(clGetContextInfo, m_context, info);
    }

/// \overload
    template<int Enum>
    typename detail::get_object_info_type<context, Enum>::type
    get_info() const;

/// Returns \c true if the context is the same as \p other.
    bool operator==(const context &other) const
    {
        return m_context == other.m_context;
    }

/// Returns \c true if the context is different from \p other.
    bool operator!=(const context &other) const
    {
        return m_context != other.m_context;
    }

/// \internal_
    operator cl_context() const
    {
        return m_context;
    }

private:
    cl_context m_context;
};

/// \internal_ define get_info() specializations for context
BOOST_COMPUTE_DETAIL_DEFINE_GET_INFO_SPECIALIZATIONS(context,
    ((cl_uint, CL_CONTEXT_REFERENCE_COUNT))
    ((std::vector<cl_device_id>, CL_CONTEXT_DEVICES))
    ((std::vector<cl_context_properties>, CL_CONTEXT_PROPERTIES))
)

#ifdef BOOST_COMPUTE_CL_VERSION_1_1
BOOST_COMPUTE_DETAIL_DEFINE_GET_INFO_SPECIALIZATIONS(context,
    ((cl_uint, CL_CONTEXT_NUM_DEVICES))
)
#endif // BOOST_COMPUTE_CL_VERSION_1_1

} // end compute namespace
} // end boost namespace

#endif // BOOST_COMPUTE_CONTEXT_HPP

cmd: