libcruft-vk/object.cpp

/*
 * Licensed under the Apache License, Version 2.0 (the "License");
 * you may not use this file except in compliance with the License.
 * You may obtain a copy of the License at
 *
 *     http://www.apache.org/licenses/LICENSE-2.0
 *
 * Unless required by applicable law or agreed to in writing, software
 * distributed under the License is distributed on an "AS IS" BASIS,
 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
 * See the License for the specific language governing permissions and
 * limitations under the License.
 *
 * Copyright:
 *      2016-2017, Danny Robson <danny@nerdcruft.net>
 */

#include "./object.hpp"

#include "./instance.hpp"

#include "./physical_device.hpp"

#include <cruft/util/debug.hpp>

using cruft::vk::object;
using cruft::vk::enumerated;


///////////////////////////////////////////////////////////////////////////////
template <typename T>
object<T>::object (native_t _native):
    m_native (_native)
{
    CHECK_NEQ (m_native, VK_NULL_HANDLE);
}


//-----------------------------------------------------------------------------
template <typename T>
object<T>::object (object &&rhs):
    m_native (VK_NULL_HANDLE)
{
    std::swap (m_native, rhs.m_native);
}


//-----------------------------------------------------------------------------
template <typename T>
const typename object<T>::native_t&
object<T>::native (void) const&
{
    return m_native;
}


//-----------------------------------------------------------------------------
template <typename T>
typename object<T>::native_t&
object<T>::native (void) &
{
    return m_native;
}


//-----------------------------------------------------------------------------
#define OBJECT(T) template struct cruft::vk::object<cruft::vk::T>;
VK_TYPE_MAP (OBJECT)


///////////////////////////////////////////////////////////////////////////////
#define DESCENDANT(T) template struct cruft::vk::descendant<cruft::vk::T>;
VK_DESCENDANT_TYPE_MAP (DESCENDANT)


///////////////////////////////////////////////////////////////////////////////
template <typename T>
std::vector<T>
cruft::vk::enumerated<T>::find (const instance &parent) {
    // find the total number of objects
    uint32_t expected = 0;
    error::try_code (enum_traits<T>::enumerate (parent.native (), &expected, nullptr));

    // allocate an array of handles and fetch them
    uint32_t found = expected;
    typename T::native_t handles[expected];
    error::try_code (enum_traits<T>::enumerate (parent.native (), &found, handles));

    // return an collection of objects from the handles
    return std::vector<T> (handles, handles + found);
}


//-----------------------------------------------------------------------------
#define ENUMERATED(T) template struct cruft::vk::enumerated<cruft::vk::T>;
VK_ENUMERATED_TYPE_MAP (ENUMERATED)