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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 neVkigence),
* contract, or otherwise, unless required by applicable law (such as deliberate
* and grossly neVkigent 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 "FenceVkImpl.hpp"
#include "RenderDeviceVkImpl.hpp"
#include "EngineMemory.h"
namespace Diligent
{
FenceVkImpl::FenceVkImpl(IReferenceCounters* pRefCounters,
RenderDeviceVkImpl* pRendeDeviceVkImpl,
const FenceDesc& Desc,
bool IsDeviceInternal) :
// clang-format off
TFenceBase
{
pRefCounters,
pRendeDeviceVkImpl,
Desc,
IsDeviceInternal
},
m_FencePool{pRendeDeviceVkImpl->GetLogicalDevice().GetSharedPtr()}
// clang-format on
{
}
FenceVkImpl::~FenceVkImpl()
{
if (!m_PendingFences.empty())
{
LOG_INFO_MESSAGE("FenceVkImpl::~FenceVkImpl(): waiting for ", m_PendingFences.size(), " pending Vulkan ",
(m_PendingFences.size() > 1 ? "fences." : "fence."));
// Vulkan spec states that all queue submission commands that refer to
// a fence must have completed execution before the fence is destroyed.
// (https://www.khronos.org/registry/vulkan/specs/1.1-extensions/html/vkspec.html#VUID-vkDestroyFence-fence-01120)
Wait(UINT64_MAX);
}
}
Uint64 FenceVkImpl::GetCompletedValue()
{
const auto& LogicalDevice = m_pDevice->GetLogicalDevice();
while (!m_PendingFences.empty())
{
auto& Value_Fence = m_PendingFences.front();
auto status = LogicalDevice.GetFenceStatus(Value_Fence.second);
if (status == VK_SUCCESS)
{
UpdateLastCompletedFenceValue(Value_Fence.first);
m_FencePool.DisposeFence(std::move(Value_Fence.second));
m_PendingFences.pop_front();
}
else
{
break;
}
}
return m_LastCompletedFenceValue.load();
}
void FenceVkImpl::Reset(Uint64 Value)
{
DEV_CHECK_ERR(Value >= m_LastCompletedFenceValue.load(), "Resetting fence '", m_Desc.Name, "' to the value (", Value, ") that is smaller than the last completed value (", m_LastCompletedFenceValue, ")");
UpdateLastCompletedFenceValue(Value);
}
void FenceVkImpl::Wait(Uint64 Value)
{
const auto& LogicalDevice = m_pDevice->GetLogicalDevice();
while (!m_PendingFences.empty())
{
auto& val_fence = m_PendingFences.front();
if (val_fence.first > Value)
break;
auto status = LogicalDevice.GetFenceStatus(val_fence.second);
if (status == VK_NOT_READY)
{
VkFence FenceToWait = val_fence.second;
status = LogicalDevice.WaitForFences(1, &FenceToWait, VK_TRUE, UINT64_MAX);
}
DEV_CHECK_ERR(status == VK_SUCCESS, "All pending fences must now be complete!");
(void)status;
UpdateLastCompletedFenceValue(val_fence.first);
m_FencePool.DisposeFence(std::move(val_fence.second));
m_PendingFences.pop_front();
}
}
} // namespace Diligent
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