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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.
*/
#include "pch.h"
#include "FenceD3D11Impl.hpp"
#include "RenderDeviceD3D11Impl.hpp"
#include "EngineMemory.h"
namespace Diligent
{
FenceD3D11Impl::FenceD3D11Impl(IReferenceCounters* pRefCounters,
RenderDeviceD3D11Impl* pDevice,
const FenceDesc& Desc) :
TFenceBase{pRefCounters, pDevice, Desc}
{
}
FenceD3D11Impl::~FenceD3D11Impl()
{
}
Uint64 FenceD3D11Impl::GetCompletedValue()
{
while (!m_PendingQueries.empty())
{
auto& QueryData = m_PendingQueries.front();
BOOL Data;
auto res = QueryData.pd3d11Ctx->GetData(QueryData.pd3d11Query, &Data, sizeof(Data), D3D11_ASYNC_GETDATA_DONOTFLUSH);
if (res == S_OK)
{
VERIFY_EXPR(Data == TRUE);
UpdateLastCompletedFenceValue(QueryData.Value);
m_PendingQueries.pop_front();
}
else
{
break;
}
}
return m_LastCompletedFenceValue.load();
}
void FenceD3D11Impl::Wait(Uint64 Value, bool FlushCommands)
{
while (!m_PendingQueries.empty())
{
auto& QueryData = m_PendingQueries.front();
if (QueryData.Value > Value)
break;
BOOL Data;
while (QueryData.pd3d11Ctx->GetData(QueryData.pd3d11Query, &Data, sizeof(Data), FlushCommands ? 0 : D3D11_ASYNC_GETDATA_DONOTFLUSH) != S_OK)
std::this_thread::yield();
VERIFY_EXPR(Data == TRUE);
UpdateLastCompletedFenceValue(QueryData.Value);
m_PendingQueries.pop_front();
}
}
void FenceD3D11Impl::Reset(Uint64 Value)
{
DEV_CHECK_ERR(Value >= m_LastCompletedFenceValue, "Resetting fence '", m_Desc.Name, "' to the value (", Value, ") that is smaller than the last completed value (", m_LastCompletedFenceValue, ")");
UpdateLastCompletedFenceValue(Value);
}
} // namespace Diligent
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