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MemoryInputStream.hpp
1
2//
3// SFML - Simple and Fast Multimedia Library
4// Copyright (C) 2007-2018 Laurent Gomila (laurent@sfml-dev.org)
5//
6// This software is provided 'as-is', without any express or implied warranty.
7// In no event will the authors be held liable for any damages arising from the use of this software.
8//
9// Permission is granted to anyone to use this software for any purpose,
10// including commercial applications, and to alter it and redistribute it freely,
11// subject to the following restrictions:
12//
13// 1. The origin of this software must not be misrepresented;
14// you must not claim that you wrote the original software.
15// If you use this software in a product, an acknowledgment
16// in the product documentation would be appreciated but is not required.
17//
18// 2. Altered source versions must be plainly marked as such,
19// and must not be misrepresented as being the original software.
20//
21// 3. This notice may not be removed or altered from any source distribution.
22//
24
25#ifndef SFML_MEMORYINPUTSTREAM_HPP
26#define SFML_MEMORYINPUTSTREAM_HPP
27
29// Headers
31#include <SFML/Config.hpp>
32#include <SFML/System/InputStream.hpp>
33#include <SFML/System/Export.hpp>
34#include <cstdlib>
35
36
37namespace sf
38{
43 class SFML_SYSTEM_API MemoryInputStream : public InputStream
44{
45public:
46
51 MemoryInputStream();
52
60 void open(const void* data, std::size_t sizeInBytes);
61
74 virtual Int64 read(void* data, Int64 size);
75
84 virtual Int64 seek(Int64 position);
85
92 virtual Int64 tell();
93
100 virtual Int64 getSize();
101
102private:
103
105 // Member data
107 const char* m_data;
108 Int64 m_size;
109 Int64 m_offset;
110};
111
112} // namespace sf
113
114
115#endif // SFML_MEMORYINPUTSTREAM_HPP
116
117
sf::InputStream
Abstract class for custom file input streams.
Definition InputStream.hpp:42
sf::MemoryInputStream
Implementation of input stream based on a memory chunk.
Definition MemoryInputStream.hpp:44
sf::MemoryInputStream::MemoryInputStream
MemoryInputStream()
Default constructor.
sf::MemoryInputStream::getSize
virtual Int64 getSize()
Return the size of the stream.
sf::MemoryInputStream::tell
virtual Int64 tell()
Get the current reading position in the stream.
sf::MemoryInputStream::seek
virtual Int64 seek(Int64 position)
Change the current reading position.
sf::MemoryInputStream::open
void open(const void *data, std::size_t sizeInBytes)
Open the stream from its data.
sf::MemoryInputStream::read
virtual Int64 read(void *data, Int64 size)
Read data from the stream.