132 lines
3.0 KiB
C++
132 lines
3.0 KiB
C++
// Copyright (c) 2012-2021 Wojciech Figat. All rights reserved.
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#if GRAPHICS_API_DIRECTX11
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#include "GPUTimerQueryDX11.h"
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GPUTimerQueryDX11::GPUTimerQueryDX11(GPUDeviceDX11* device)
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: GPUResourceDX11<GPUTimerQuery>(device, String::Empty)
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{
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D3D11_QUERY_DESC queryDesc;
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queryDesc.Query = D3D11_QUERY_TIMESTAMP_DISJOINT;
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queryDesc.MiscFlags = 0;
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HRESULT hr = device->GetDevice()->CreateQuery(&queryDesc, &_disjointQuery);
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if (hr != S_OK)
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{
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LOG(Fatal, "Failed to create a timer query.");
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}
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queryDesc.Query = D3D11_QUERY_TIMESTAMP;
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hr = device->GetDevice()->CreateQuery(&queryDesc, &_beginQuery);
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if (hr != S_OK)
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{
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LOG(Fatal, "Failed to create a timer query.");
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}
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hr = device->GetDevice()->CreateQuery(&queryDesc, &_endQuery);
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if (hr != S_OK)
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{
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LOG(Fatal, "Failed to create a timer query.");
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}
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// Set non-zero mem usage (fake)
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_memoryUsage = sizeof(D3D11_QUERY_DESC) * 3;
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}
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GPUTimerQueryDX11::~GPUTimerQueryDX11()
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{
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if (_beginQuery)
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_beginQuery->Release();
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if (_endQuery)
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_endQuery->Release();
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if (_disjointQuery)
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_disjointQuery->Release();
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}
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void GPUTimerQueryDX11::OnReleaseGPU()
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{
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SAFE_RELEASE(_beginQuery);
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SAFE_RELEASE(_endQuery);
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SAFE_RELEASE(_disjointQuery);
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}
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ID3D11Resource* GPUTimerQueryDX11::GetResource()
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{
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return nullptr;
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}
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void GPUTimerQueryDX11::Begin()
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{
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auto context = _device->GetIM();
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context->Begin(_disjointQuery);
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context->End(_beginQuery);
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_endCalled = false;
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}
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void GPUTimerQueryDX11::End()
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{
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if (_endCalled)
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return;
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auto context = _device->GetIM();
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context->End(_endQuery);
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context->End(_disjointQuery);
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_endCalled = true;
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_finalized = false;
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}
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bool GPUTimerQueryDX11::HasResult()
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{
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if (!_endCalled)
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return false;
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D3D11_QUERY_DATA_TIMESTAMP_DISJOINT disjointData;
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return _device->GetIM()->GetData(_disjointQuery, &disjointData, sizeof(disjointData), 0) == S_OK;
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}
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float GPUTimerQueryDX11::GetResult()
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{
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if (!_finalized)
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{
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#if BUILD_DEBUG
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ASSERT(HasResult());
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#endif
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UINT64 timeStart, timeEnd;
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auto context = _device->GetIM();
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context->GetData(_beginQuery, &timeStart, sizeof(timeStart), 0);
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context->GetData(_endQuery, &timeEnd, sizeof(timeEnd), 0);
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D3D11_QUERY_DATA_TIMESTAMP_DISJOINT disjointData;
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context->GetData(_disjointQuery, &disjointData, sizeof(disjointData), 0);
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if (disjointData.Disjoint == FALSE)
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{
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const UINT64 delta = timeEnd - timeStart;
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_timeDelta = (float)(((double)delta / (double)disjointData.Frequency) * 1000.0);
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}
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else
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{
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_timeDelta = 0.0f;
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#if !BUILD_RELEASE
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static bool SingleShotLog = false;
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if (!SingleShotLog)
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{
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SingleShotLog = true;
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LOG(Warning, "Unreliable GPU timer query detected.");
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}
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#endif
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}
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_finalized = true;
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}
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return _timeDelta;
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}
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#endif
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