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/*
* Copyright 2019-2021 Diligent Graphics LLC
* Copyright 2015-2019 Egor Yusov
*
* 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.
*
* In no event and under no legal theory, whether in tort (including negligence),
* contract, or otherwise, unless required by applicable law (such as deliberate
* and grossly negligent acts) or agreed to in writing, shall any Contributor be
* liable for any damages, including any direct, indirect, special, incidental,
* or consequential damages of any character arising as a result of this License or
* out of the use or inability to use the software (including but not limited to damages
* for loss of goodwill, work stoppage, computer failure or malfunction, or any and
* all other commercial damages or losses), even if such Contributor has been advised
* of the possibility of such damages.
*/
#pragma once
/// \file
/// Declaration of Diligent::DisjointQueryPool class
#include <memory>
#include <atlbase.h>
namespace Diligent
{
class DisjointQueryPool final
{
public:
struct DisjointQueryWrapper
{
DisjointQueryPool& Pool;
CComPtr<ID3D11Query> pd3d11Query;
bool IsEnded = false;
DisjointQueryWrapper(DisjointQueryPool& _Pool,
CComPtr<ID3D11Query>&& _pd3d11Query) :
Pool(_Pool),
pd3d11Query(std::move(_pd3d11Query))
{
}
~DisjointQueryWrapper()
{
Pool.m_AvailableQueries.emplace_back(std::move(pd3d11Query));
}
DisjointQueryWrapper(DisjointQueryWrapper&&) = default;
DisjointQueryWrapper(const DisjointQueryWrapper&) = delete;
DisjointQueryWrapper& operator=(const DisjointQueryWrapper&) = delete;
DisjointQueryWrapper& operator=(DisjointQueryWrapper&&) = delete;
};
std::shared_ptr<DisjointQueryWrapper> GetDisjointQuery(ID3D11Device* pd3d11Device)
{
CComPtr<ID3D11Query> pd3d11Query;
if (!m_AvailableQueries.empty())
{
pd3d11Query = std::move(m_AvailableQueries.back());
m_AvailableQueries.pop_back();
}
else
{
pd3d11Query = CreateQuery(pd3d11Device);
}
return std::shared_ptr<DisjointQueryWrapper>{new DisjointQueryWrapper{*this, std::move(pd3d11Query)}};
}
~DisjointQueryPool()
{
LOG_INFO_MESSAGE("Disjoint query pool: created ", m_NumQueriesCreated, (m_NumQueriesCreated == 1 ? " query" : " queries"));
}
private:
CComPtr<ID3D11Query> CreateQuery(ID3D11Device* pd3d11Device)
{
D3D11_QUERY_DESC QueryDesc = {D3D11_QUERY_TIMESTAMP_DISJOINT, 0};
CComPtr<ID3D11Query> pd3d11Query;
pd3d11Device->CreateQuery(&QueryDesc, &pd3d11Query);
DEV_CHECK_ERR(pd3d11Query, "Failed to create D3D11 disjoint query");
++m_NumQueriesCreated;
return pd3d11Query;
}
std::vector<CComPtr<ID3D11Query>> m_AvailableQueries;
Uint32 m_NumQueriesCreated = 0;
};
} // namespace Diligent
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