240 lines
6.9 KiB
C++
240 lines
6.9 KiB
C++
//
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// Copyright 2013 Francisco Jerez
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//
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// Permission is hereby granted, free of charge, to any person obtaining a
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// copy of this software and associated documentation files (the "Software"),
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// to deal in the Software without restriction, including without limitation
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// the rights to use, copy, modify, merge, publish, distribute, sublicense,
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// and/or sell copies of the Software, and to permit persons to whom the
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// Software is furnished to do so, subject to the following conditions:
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//
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// The above copyright notice and this permission notice shall be included in
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// all copies or substantial portions of the Software.
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//
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// THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
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// IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
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// FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL
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// THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR
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// OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE,
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// ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR
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// OTHER DEALINGS IN THE SOFTWARE.
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//
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#ifndef CLOVER_CORE_OBJECT_HPP
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#define CLOVER_CORE_OBJECT_HPP
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#include <cassert>
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#include <functional>
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#include <vector>
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#include "CL/cl.h"
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#include "core/error.hpp"
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#include "core/property.hpp"
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#include "api/dispatch.hpp"
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#include "util/macros.h"
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///
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/// Main namespace of the CL gallium frontend.
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///
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namespace clover {
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///
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/// Class that represents a CL API object.
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///
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template<typename T, typename S>
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struct descriptor {
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typedef T object_type;
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typedef S descriptor_type;
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descriptor() : dispatch(&_dispatch) {
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static_assert(std::is_standard_layout<descriptor_type>::value,
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"ICD requires CL API objects to be standard layout.");
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}
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const cl_icd_dispatch *dispatch;
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};
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struct default_tag;
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struct allow_empty_tag;
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struct wait_list_tag;
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struct property_list_tag;
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namespace detail {
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template<typename T, typename D>
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struct descriptor_traits {
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typedef T object_type;
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static void
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validate(D *d) {
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auto o = static_cast<typename D::object_type *>(d);
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if (!o || o->dispatch != &_dispatch ||
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!dynamic_cast<object_type *>(o))
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throw invalid_object_error<T>();
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}
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static void
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validate_list(D * const *ds, size_t n) {
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if (!ds || !n)
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throw error(CL_INVALID_VALUE);
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}
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};
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template<typename D>
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struct descriptor_traits<default_tag, D> {
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typedef typename D::object_type object_type;
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static void
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validate(D *d) {
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if (!d || d->dispatch != &_dispatch)
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throw invalid_object_error<object_type>();
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}
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static void
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validate_list(D *const *ds, size_t n) {
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if (!ds || !n)
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throw error(CL_INVALID_VALUE);
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}
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};
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template<typename D>
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struct descriptor_traits<allow_empty_tag, D> {
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typedef typename D::object_type object_type;
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static void
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validate(D *d) {
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if (!d || d->dispatch != &_dispatch)
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throw invalid_object_error<object_type>();
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}
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static void
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validate_list(D *const *ds, size_t n) {
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if (bool(ds) != bool(n))
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throw error(CL_INVALID_VALUE);
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}
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};
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template<typename D>
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struct descriptor_traits<wait_list_tag, D> {
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typedef typename D::object_type object_type;
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static void
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validate(D *d) {
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if (!d || d->dispatch != &_dispatch)
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throw invalid_wait_list_error();
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}
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static void
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validate_list(D *const *ds, size_t n) {
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if (bool(ds) != bool(n))
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throw invalid_wait_list_error();
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}
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};
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}
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///
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/// Get a Clover object from an API object performing object
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/// validation.
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///
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/// \a T can either be the Clover object type to return or a \a tag
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/// object to select some special validation behavior by means of a
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/// specialization of the detail::descriptor_traits template. The
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/// default behavior is to infer the most general Clover object
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/// type for the given API object.
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///
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template<typename T = default_tag, typename D>
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typename detail::descriptor_traits<T, D>::object_type &
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obj(D *d) {
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detail::descriptor_traits<T, D>::validate(d);
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return static_cast<
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typename detail::descriptor_traits<T, D>::object_type &>(*d);
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}
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///
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/// Get a pointer to a Clover object from an API object performing
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/// object validation. Returns \c NULL if its argument is \c NULL.
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///
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/// \sa obj
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///
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template<typename T = default_tag, typename D>
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typename detail::descriptor_traits<T, D>::object_type *
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pobj(D *d) {
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if (d)
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detail::descriptor_traits<T, D>::validate(d);
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return static_cast<
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typename detail::descriptor_traits<T, D>::object_type *>(d);
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}
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///
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/// Get an API object from a Clover object.
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///
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template<typename O>
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typename O::descriptor_type *
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desc(O &o) {
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return static_cast<typename O::descriptor_type *>(&o);
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}
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///
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/// Get an API object from a pointer to a Clover object.
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///
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template<typename O>
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typename O::descriptor_type *
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desc(O *o) {
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return static_cast<typename O::descriptor_type *>(o);
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}
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///
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/// Get a range of Clover objects from a range of API objects
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/// performing object validation.
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///
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/// \sa obj
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///
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template<typename T = default_tag, typename D>
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ref_vector<typename detail::descriptor_traits<T, D>::object_type>
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objs(D *const *ds, size_t n) {
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detail::descriptor_traits<T, D>::validate_list(ds, n);
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return map(obj<T, D>, range(ds, n));
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}
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///
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/// Get a range of API objects from a range of Clover objects.
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///
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template<typename Os>
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std::vector<typename Os::value_type::descriptor_type *>
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descs(const Os &os) {
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return map([](typename Os::value_type &o) {
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return desc(o);
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}, os);
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}
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}
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struct _cl_context :
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public clover::descriptor<clover::context, _cl_context> {};
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struct _cl_device_id :
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public clover::descriptor<clover::device, _cl_device_id> {};
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struct _cl_event :
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public clover::descriptor<clover::event, _cl_event> {};
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struct _cl_kernel :
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public clover::descriptor<clover::kernel, _cl_kernel> {};
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struct _cl_mem :
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public clover::descriptor<clover::memory_obj, _cl_mem> {};
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struct _cl_platform_id :
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public clover::descriptor<clover::platform, _cl_platform_id> {};
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struct _cl_program :
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public clover::descriptor<clover::program, _cl_program> {};
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struct _cl_command_queue :
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public clover::descriptor<clover::command_queue, _cl_command_queue> {};
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struct _cl_sampler :
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public clover::descriptor<clover::sampler, _cl_sampler> {};
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#endif
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