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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.
*/
#pragma once
/// \file
/// Implementation of the MemoryFileStream class
#include "../../Primitives/interface/FileStream.h"
#include "../../Primitives/interface/DataBlob.h"
#include "ObjectBase.hpp"
#include "RefCountedObjectImpl.hpp"
#include "RefCntAutoPtr.hpp"
namespace Diligent
{
/// Memory file stream implementation
class MemoryFileStream : public ObjectBase<IFileStream>
{
public:
typedef ObjectBase<IFileStream> TBase;
MemoryFileStream(IReferenceCounters* pRefCounters,
IDataBlob* pData);
virtual void DILIGENT_CALL_TYPE QueryInterface(const INTERFACE_ID& IID, IObject** ppInterface) override;
/// Reads data from the stream
virtual void DILIGENT_CALL_TYPE ReadBlob(IDataBlob* pData) override;
/// Reads data from the stream
virtual bool DILIGENT_CALL_TYPE Read(void* Data, size_t Size) override;
/// Writes data to the stream
virtual bool DILIGENT_CALL_TYPE Write(const void* Data, size_t Size) override;
virtual size_t DILIGENT_CALL_TYPE GetSize() override;
virtual bool DILIGENT_CALL_TYPE IsValid() override;
private:
RefCntAutoPtr<IDataBlob> m_DataBlob;
size_t m_CurrentOffset = 0;
};
} // namespace Diligent
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