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/*
** ClanLib SDK
** Copyright (c) 1997-2005 The ClanLib Team
**
** This software is provided 'as-is', without any express or implied
** warranty. In no event will the authors be held liable for any damages
** arising from the use of this software.
**
** Permission is granted to anyone to use this software for any purpose,
** including commercial applications, and to alter it and redistribute it
** freely, subject to the following restrictions:
**
** 1. The origin of this software must not be misrepresented; you must not
** claim that you wrote the original software. If you use this software
** in a product, an acknowledgment in the product documentation would be
** appreciated but is not required.
** 2. Altered source versions must be plainly marked as such, and must not be
** misrepresented as being the original software.
** 3. This notice may not be removed or altered from any source distribution.
**
** Note: Some of the libraries ClanLib may link to may have additional
** requirements or restrictions.
**
** File Author(s):
**
** Magnus Norddahl
** (if your name is missing here, please add it)
*/
#ifndef header_inputsource_memory_generic
#define header_inputsource_memory_generic
#if _MSC_VER > 1000
#pragma once
#endif
#include "API/Core/IOData/inputsource.h"
#include "API/Core/IOData/inputsource_provider.h"
class CL_OutputSource_MemoryGeneric;
class CL_InputSource_MemoryGeneric : public CL_InputSource
//: Interface to read data from a memory_generic source.
//- <p>CL_InputSource_MemoryGeneric is used to read data from a memory_generic source.</p>
//also: CL_InputSourceProvider - Interface to open input sources with.
{
public:
CL_InputSource_MemoryGeneric(void *data, int size, bool delete_data = false);
//: MemoryGeneric copy constructor.
//- <p>Makes a seperate copy of the memory in MG.</p>
//also: MemoryGeneric::clone.
//param MG: Pointer to the MemoryGeneric object from which to copy.
CL_InputSource_MemoryGeneric(const CL_InputSource_MemoryGeneric *MG);
virtual ~CL_InputSource_MemoryGeneric();
//: Reads larger amounts of data (no endian and 64 bit conversion).
//param data: Points to an array where the read data is stored.
//param size: Number of bytes to read.
//return: Num bytes actually read.
virtual int read(void *data, int size);
//: Opens the input source. By default, it is open.
virtual void open();
//: Closes the input source.
virtual void close();
//: Make a copy of the current InputSource, standing at the same position.
//return: The clone of the input source.
virtual CL_InputSource *clone() const;
//: Returns current position in input source.
//return: Current position in input source.
virtual int tell() const;
//: Seeks to the specified position in the input source.
//param pos: Position relative to 'seek_type'.
//param seek_type: Defines what the 'pos' is relative to. Can be either seek_set, seek_cur og seek_end.
virtual void seek(int pos, SeekEnum seek_type);
//: Returns the size of the input source
//return: Size of the input source.
virtual int size() const;
//: Pushes the current input source position. The position can be restored again with pop_position.
virtual void push_position();
//: Pops a previous pushed input source position (returns to the position).
virtual void pop_position();
//: Purges the input buffer of data without deleting the buffer
virtual void purge();
private:
unsigned char *data;
unsigned int pos, length;
bool delete_data;
};
class CL_InputSourceProvider_Memory : public CL_InputSourceProvider
{
public:
CL_InputSourceProvider_Memory(unsigned char *data, unsigned int size, bool delete_data);
CL_InputSourceProvider_Memory(CL_InputSource_MemoryGeneric *MG);
CL_InputSourceProvider_Memory(CL_OutputSource_MemoryGeneric *MG);
virtual CL_InputSource *open_source(const std::string &handle);
virtual CL_InputSourceProvider *clone();
private:
unsigned char *data;
unsigned int size;
bool delete_data;
};
#endif
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