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o3de/Code/Tools/CryCommonTools/PakXmlFileBufferSource.h

75 lines
1.9 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.
*
*/
// Original file Copyright Crytek GMBH or its affiliates, used under license.
#ifndef CRYINCLUDE_CRYCOMMONTOOLS_PAKXMLFILEBUFFERSOURCE_H
#define CRYINCLUDE_CRYCOMMONTOOLS_PAKXMLFILEBUFFERSOURCE_H
#pragma once
#include "../CryXML/IXMLSerializer.h"
#include "IPakSystem.h"
class PakXmlFileBufferSource
: public IXmlBufferSource
{
public:
PakXmlFileBufferSource(IPakSystem* pakSystem, const char* path)
: pakSystem(pakSystem)
{
file = pakSystem->Open(path, "r");
}
~PakXmlFileBufferSource()
{
if (file)
{
pakSystem->Close(file);
}
}
virtual int Read(void* buffer, int size) const
{
return pakSystem->Read(file, buffer, size);
};
IPakSystem* pakSystem;
PakSystemFile* file;
};
class PakXmlBufferSource
: public IXmlBufferSource
{
public:
PakXmlBufferSource(const char* buffer, size_t length)
: position(buffer)
, end(buffer + length)
{
}
virtual int Read(void* output, int size) const
{
size_t bytesLeft = end - position;
size_t bytesToCopy = size < bytesLeft ? size : bytesLeft;
if (bytesToCopy > 0)
{
memcpy(output, position, bytesToCopy);
position += bytesToCopy;
}
return bytesToCopy;
};
mutable const char* position;
const char* end;
};
#endif // CRYINCLUDE_CRYCOMMONTOOLS_PAKXMLFILEBUFFERSOURCE_H