alexpete
65 lines
2.8 KiB
C++
65 lines
2.8 KiB
C++
/*
|
|
* All or portions of this file Copyright (c) Amazon.com, Inc. or its affiliates or
|
|
* its licensors.
|
|
*
|
|
* For complete copyright and license terms please see the LICENSE at the root of this
|
|
* distribution (the "License"). All use of this software is governed by the License,
|
|
* or, if provided, by the license below or the license accompanying this file. Do not
|
|
* remove or modify any license notices. This file is distributed on an "AS IS" BASIS,
|
|
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
|
|
*
|
|
*/
|
|
|
|
#include <Atom/RPI.Reflect/Image/StreamingImageAssetHandler.h>
|
|
|
|
namespace AZ
|
|
{
|
|
namespace RPI
|
|
{
|
|
void StreamingImageAssetHandler::SetLoadMipChainsEnabled(bool enabled)
|
|
{
|
|
m_enableLoadMipChains = enabled;
|
|
}
|
|
|
|
bool StreamingImageAssetHandler::GetLoadMipChainsEnabled() const
|
|
{
|
|
return m_enableLoadMipChains;
|
|
}
|
|
|
|
Data::AssetHandler::LoadResult StreamingImageAssetHandler::LoadAssetData(
|
|
const Data::Asset<Data::AssetData>& asset,
|
|
AZStd::shared_ptr<Data::AssetDataStream> stream,
|
|
const Data::AssetFilterCB& assetLoadFilterCB)
|
|
{
|
|
// Using customized filter instead using the input one.
|
|
// We can do this because the StreamingImageAsset owns all the ImageMipChainAssets that it references.
|
|
// NOTE: We can't set the mip chain assets' flags in StreamingImageAsset's constructor since the array is empty at that time.
|
|
AZ_UNUSED(assetLoadFilterCB);
|
|
|
|
StreamingImageAsset* assetData = asset.GetAs<StreamingImageAsset>();
|
|
AZ_Assert(assetData, "Asset is of the wrong type.");
|
|
AZ_Assert(m_serializeContext, "Unable to retrieve serialize context.");
|
|
|
|
Data::AssetHandler::LoadResult loadResult = Data::AssetHandler::LoadResult::Error;
|
|
if (assetData)
|
|
{
|
|
// Setup filter to not load the mipchain assets referenced internally.
|
|
ObjectStream::FilterDescriptor filter(m_enableLoadMipChains? nullptr : Data::AssetFilterNoAssetLoading, 0);
|
|
|
|
loadResult = Utils::LoadObjectFromStreamInPlace<StreamingImageAsset>(*stream, *assetData, m_serializeContext, filter) ?
|
|
Data::AssetHandler::LoadResult::LoadComplete :
|
|
Data::AssetHandler::LoadResult::Error;
|
|
|
|
if (loadResult == Data::AssetHandler::LoadResult::LoadComplete)
|
|
{
|
|
// ImageMipChainAsset has some internal variables need to initialized after it was loaded.
|
|
StreamingImageAsset* assetData2 = asset.GetAs<StreamingImageAsset>();
|
|
assetData2->m_tailMipChain.Init();
|
|
}
|
|
}
|
|
|
|
return loadResult;
|
|
}
|
|
}
|
|
}
|