mirror of
https://github.com/vcmi/vcmi.git
synced 2024-11-26 08:41:13 +02:00
89 lines
1.8 KiB
C++
89 lines
1.8 KiB
C++
#pragma once
|
|
|
|
/*
|
|
* CMemoryBuffer.h, part of VCMI engine
|
|
*
|
|
* Authors: listed in file AUTHORS in main folder
|
|
*
|
|
* License: GNU General Public License v2.0 or later
|
|
* Full text of license available in license.txt file, in main folder
|
|
*
|
|
*/
|
|
|
|
|
|
#include "CInputOutputStream.h"
|
|
|
|
/**
|
|
* A class which provides IO memory buffer.
|
|
*/
|
|
|
|
class DLL_LINKAGE CMemoryBuffer : public CInputOutputStream
|
|
{
|
|
public:
|
|
typedef std::vector<ui8> TBuffer;
|
|
|
|
/**
|
|
* C-tor.
|
|
*
|
|
*/
|
|
CMemoryBuffer();
|
|
|
|
/**
|
|
* Write n bytes from the stream into the data buffer.
|
|
*
|
|
* @param data A pointer to the destination data array.
|
|
* @param size The number of bytes to write.
|
|
* @return the number of bytes written actually.
|
|
*/
|
|
si64 write(const ui8 * data, si64 size) override;
|
|
|
|
/**
|
|
* Reads n bytes from the stream into the data buffer.
|
|
*
|
|
* @param data A pointer to the destination data array.
|
|
* @param size The number of bytes to read.
|
|
* @return the number of bytes read actually.
|
|
*/
|
|
si64 read(ui8 * data, si64 size) override;
|
|
|
|
/**
|
|
* Seeks the internal read pointer to the specified position.
|
|
*
|
|
* @param position The read position from the beginning.
|
|
* @return the position actually moved to, -1 on error.
|
|
*/
|
|
si64 seek(si64 position) override;
|
|
|
|
/**
|
|
* Gets the current read position in the stream.
|
|
*
|
|
* @return the read position.
|
|
*/
|
|
si64 tell() override;
|
|
|
|
/**
|
|
* Skips delta numbers of bytes.
|
|
*
|
|
* @param delta The count of bytes to skip.
|
|
* @return the count of bytes skipped actually.
|
|
*/
|
|
si64 skip(si64 delta) override;
|
|
|
|
/**
|
|
* Gets the length in bytes of the stream.
|
|
*
|
|
* @return the length in bytes of the stream.
|
|
*/
|
|
si64 getSize() override;
|
|
|
|
const TBuffer & getBuffer(){return buffer;}
|
|
|
|
private:
|
|
/** Actual data. */
|
|
TBuffer buffer;
|
|
|
|
/** Current reading position of the stream. */
|
|
si64 position;
|
|
};
|
|
|