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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
#include <mutex>
#include <array>
#include <deque>
#include <vector>
#include "Query.h"
namespace Diligent
{
class CommandContext;
// https://microsoft.github.io/DirectX-Specs/d3d/CountersAndQueries.html#queries
class QueryManagerD3D12
{
public:
QueryManagerD3D12(ID3D12Device* pd3d12Device,
const Uint32 QueryHeapSizes[]);
~QueryManagerD3D12();
// clang-format off
QueryManagerD3D12 (const QueryManagerD3D12&) = delete;
QueryManagerD3D12 ( QueryManagerD3D12&&) = delete;
QueryManagerD3D12& operator = (const QueryManagerD3D12&) = delete;
QueryManagerD3D12& operator = ( QueryManagerD3D12&&) = delete;
// clang-format on
static constexpr Uint32 InvalidIndex = static_cast<Uint32>(-1);
Uint32 AllocateQuery(QUERY_TYPE Type);
void ReleaseQuery(QUERY_TYPE Type, Uint32 Index);
ID3D12QueryHeap* GetQueryHeap(QUERY_TYPE Type)
{
return m_Heaps[Type].pd3d12QueryHeap;
}
void BeginQuery(CommandContext& Ctx, QUERY_TYPE Type, Uint32 Index);
void EndQuery(CommandContext& Ctx, QUERY_TYPE Type, Uint32 Index);
void ReadQueryData(QUERY_TYPE Type, Uint32 Index, void* pDataPtr, Uint32 DataSize) const;
private:
struct QueryHeapInfo
{
CComPtr<ID3D12QueryHeap> pd3d12QueryHeap;
std::deque<Uint32> AvailableQueries;
std::vector<Uint32> ResolveBufferOffsets;
Uint32 HeapSize = 0;
Uint32 MaxAllocatedQueries = 0;
};
std::mutex m_HeapMutex;
std::array<QueryHeapInfo, QUERY_TYPE_NUM_TYPES> m_Heaps;
// Readback buffer that will contain the query data.
CComPtr<ID3D12Resource> m_pd3d12ResolveBuffer;
};
} // namespace Diligent
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