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75 lines
2.8 KiB
C++
75 lines
2.8 KiB
C++
/*
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* Copyright (c) Contributors to the Open 3D Engine Project.
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* For complete copyright and license terms please see the LICENSE at the root of this distribution.
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*
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* SPDX-License-Identifier: Apache-2.0 OR MIT
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*
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*/
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#pragma once
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#include <AzCore/Asset/AssetCommon.h>
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#include <AzCore/RTTI/TypeInfo.h>
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#include <Atom/Feature/Mesh/ModelReloaderSystemInterface.h>
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#include <Source/Mesh/ModelReloaderSystem.h>
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namespace AZ
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{
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namespace RPI
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{
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class ModelAsset;
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}
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namespace Render
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{
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//! ModelReloader takes care of reloading Buffer, ModelLod, and Model assets in the correct order
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//! The ModelReloaderSystem should be used to reload a model, rather than using a ModelReloader directly
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class ModelReloader
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: private Data::AssetBus::MultiHandler
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{
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using DependencyList = AZStd::vector<Data::Asset<Data::AssetData>>;
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public:
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AZ_RTTI(AZ::Render::ModelReloader, "{99B75A6A-62B6-490A-9953-029BE7D69452}");
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ModelReloader() = default;
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//! Reload a model asset
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//! @param modelAsset - the asset to be reloaded
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//! @param removeReloaderFromSystemHandler - an event that will tell the ModelReloaderSystem when to remove the reloader because it is finished
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ModelReloader(Data::Asset<RPI::ModelAsset> modelAsset, RemoveModelFromReloaderSystemEvent::Handler& removeReloaderFromSystemHandler);
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//! Connects a handler that will handle an event when the model is finished reloading
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void ConnectOnReloadedEventHandler(ModelReloadedEvent::Handler& onReloadedEventHandler);
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private:
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enum class State
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{
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WaitingForMeshDependencies,
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WaitingForModelDependencies,
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WaitingForModel
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};
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// Data::AssetBus::MultiHandler overrides...
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void OnAssetReloaded(AZ::Data::Asset<AZ::Data::AssetData> asset) override;
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void OnAssetReloadError(Data::Asset<Data::AssetData> asset) override;
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void InsertMeshDependencyIfUnique(Data::Asset<Data::AssetData> asset);
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void ReloadDependenciesAndWait();
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void AdvanceToNextLevelOfHierarchy();
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DependencyList& GetPendingDependencyList();
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ModelReloadedEvent m_onModelReloaded;
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RemoveModelFromReloaderSystemEvent m_onRemoveReloaderFromSystem;
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// Keep track of all the asset references for each level of the hierarchy
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DependencyList m_modelAsset;
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DependencyList m_meshDependencies;
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DependencyList m_modelDependencies;
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AZStd::bitset<1024> m_pendingDependencyListStatus;
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State m_state;
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};
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} // namespace Render
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} // namespace AZ
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