Documentation de SFML 2.6.0

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MemoryInputStream.hpp
1
2//
3// SFML - Simple and Fast Multimedia Library
4// Copyright (C) 2007-2023 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{
43class SFML_SYSTEM_API MemoryInputStream : public InputStream
44{
45public:
46
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
Abstract class for custom file input streams.
Definition: InputStream.hpp:42
Implementation of input stream based on a memory chunk.
MemoryInputStream()
Default constructor.
virtual Int64 getSize()
Return the size of the stream.
virtual Int64 tell()
Get the current reading position in the stream.
virtual Int64 seek(Int64 position)
Change the current reading position.
void open(const void *data, std::size_t sizeInBytes)
Open the stream from its data.
virtual Int64 read(void *data, Int64 size)
Read data from the stream.