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<li class="navelem"><b>sf</b></li><li class="navelem"><a class="el" href="classsf_1_1MemoryInputStream.html">MemoryInputStream</a></li> </ul>
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<a href="#pub-methods">Public Member Functions</a> &#124;
<a href="classsf_1_1MemoryInputStream-members.html">List of all members</a> </div>
<div class="headertitle">
<div class="title">sf::MemoryInputStream Class Reference<div class="ingroups"><a class="el" href="group__system.html">System module</a></div></div> </div>
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<p>Implementation of input stream based on a memory chunk.
<a href="classsf_1_1MemoryInputStream.html#details">More...</a></p>
<p><code>#include &lt;<a class="el" href="MemoryInputStream_8hpp_source.html">MemoryInputStream.hpp</a>&gt;</code></p>
<div class="dynheader">
Inheritance diagram for sf::MemoryInputStream:</div>
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<img src="classsf_1_1MemoryInputStream.png" usemap="#sf::MemoryInputStream_map" alt=""/>
<map id="sf::MemoryInputStream_map" name="sf::MemoryInputStream_map">
<area href="classsf_1_1InputStream.html" title="Abstract class for custom file input streams. " alt="sf::InputStream" shape="rect" coords="0,0,140,24"/>
</map>
</div></div>
<table class="memberdecls">
<tr class="heading"><td colspan="2"><h2 class="groupheader"><a name="pub-methods"></a>
Public Member Functions</h2></td></tr>
<tr class="memitem:a2d78851a69a8956a79872be41bcdfe0e"><td class="memItemLeft" align="right" valign="top">&#160;</td><td class="memItemRight" valign="bottom"><a class="el" href="classsf_1_1MemoryInputStream.html#a2d78851a69a8956a79872be41bcdfe0e">MemoryInputStream</a> ()</td></tr>
<tr class="memdesc:a2d78851a69a8956a79872be41bcdfe0e"><td class="mdescLeft">&#160;</td><td class="mdescRight">Default constructor. <a href="#a2d78851a69a8956a79872be41bcdfe0e">More...</a><br /></td></tr>
<tr class="separator:a2d78851a69a8956a79872be41bcdfe0e"><td class="memSeparator" colspan="2">&#160;</td></tr>
<tr class="memitem:ad3cfb4f4f915f7803d6a0784e394ac19"><td class="memItemLeft" align="right" valign="top">void&#160;</td><td class="memItemRight" valign="bottom"><a class="el" href="classsf_1_1MemoryInputStream.html#ad3cfb4f4f915f7803d6a0784e394ac19">open</a> (const void *data, std::size_t sizeInBytes)</td></tr>
<tr class="memdesc:ad3cfb4f4f915f7803d6a0784e394ac19"><td class="mdescLeft">&#160;</td><td class="mdescRight">Open the stream from its data. <a href="#ad3cfb4f4f915f7803d6a0784e394ac19">More...</a><br /></td></tr>
<tr class="separator:ad3cfb4f4f915f7803d6a0784e394ac19"><td class="memSeparator" colspan="2">&#160;</td></tr>
<tr class="memitem:adff5270c521819639154d42d76fd4c34"><td class="memItemLeft" align="right" valign="top">virtual Int64&#160;</td><td class="memItemRight" valign="bottom"><a class="el" href="classsf_1_1MemoryInputStream.html#adff5270c521819639154d42d76fd4c34">read</a> (void *data, Int64 size)</td></tr>
<tr class="memdesc:adff5270c521819639154d42d76fd4c34"><td class="mdescLeft">&#160;</td><td class="mdescRight">Read data from the stream. <a href="#adff5270c521819639154d42d76fd4c34">More...</a><br /></td></tr>
<tr class="separator:adff5270c521819639154d42d76fd4c34"><td class="memSeparator" colspan="2">&#160;</td></tr>
<tr class="memitem:aa2ac8fda2bdb4c95248ae90c71633034"><td class="memItemLeft" align="right" valign="top">virtual Int64&#160;</td><td class="memItemRight" valign="bottom"><a class="el" href="classsf_1_1MemoryInputStream.html#aa2ac8fda2bdb4c95248ae90c71633034">seek</a> (Int64 position)</td></tr>
<tr class="memdesc:aa2ac8fda2bdb4c95248ae90c71633034"><td class="mdescLeft">&#160;</td><td class="mdescRight">Change the current reading position. <a href="#aa2ac8fda2bdb4c95248ae90c71633034">More...</a><br /></td></tr>
<tr class="separator:aa2ac8fda2bdb4c95248ae90c71633034"><td class="memSeparator" colspan="2">&#160;</td></tr>
<tr class="memitem:a7ad4bdf721f29de8f66421ff29e23ee4"><td class="memItemLeft" align="right" valign="top">virtual Int64&#160;</td><td class="memItemRight" valign="bottom"><a class="el" href="classsf_1_1MemoryInputStream.html#a7ad4bdf721f29de8f66421ff29e23ee4">tell</a> ()</td></tr>
<tr class="memdesc:a7ad4bdf721f29de8f66421ff29e23ee4"><td class="mdescLeft">&#160;</td><td class="mdescRight">Get the current reading position in the stream. <a href="#a7ad4bdf721f29de8f66421ff29e23ee4">More...</a><br /></td></tr>
<tr class="separator:a7ad4bdf721f29de8f66421ff29e23ee4"><td class="memSeparator" colspan="2">&#160;</td></tr>
<tr class="memitem:a6ade3ca45de361ffa0a718595f0b6763"><td class="memItemLeft" align="right" valign="top">virtual Int64&#160;</td><td class="memItemRight" valign="bottom"><a class="el" href="classsf_1_1MemoryInputStream.html#a6ade3ca45de361ffa0a718595f0b6763">getSize</a> ()</td></tr>
<tr class="memdesc:a6ade3ca45de361ffa0a718595f0b6763"><td class="mdescLeft">&#160;</td><td class="mdescRight">Return the size of the stream. <a href="#a6ade3ca45de361ffa0a718595f0b6763">More...</a><br /></td></tr>
<tr class="separator:a6ade3ca45de361ffa0a718595f0b6763"><td class="memSeparator" colspan="2">&#160;</td></tr>
</table>
<a name="details" id="details"></a><h2 class="groupheader">Detailed Description</h2>
<div class="textblock"><p>Implementation of input stream based on a memory chunk. </p>
<p>This class is a specialization of <a class="el" href="classsf_1_1InputStream.html" title="Abstract class for custom file input streams. ">InputStream</a> that reads from data in memory.</p>
<p>It wraps a memory chunk in the common <a class="el" href="classsf_1_1InputStream.html" title="Abstract class for custom file input streams. ">InputStream</a> interface and therefore allows to use generic classes or functions that accept such a stream, with content already loaded in memory.</p>
<p>In addition to the virtual functions inherited from <a class="el" href="classsf_1_1InputStream.html" title="Abstract class for custom file input streams. ">InputStream</a>, <a class="el" href="classsf_1_1MemoryInputStream.html" title="Implementation of input stream based on a memory chunk. ">MemoryInputStream</a> adds a function to specify the pointer and size of the data in memory.</p>
<p>SFML resource classes can usually be loaded directly from memory, so this class shouldn't be useful to you unless you create your own algorithms that operate on an <a class="el" href="classsf_1_1InputStream.html" title="Abstract class for custom file input streams. ">InputStream</a>.</p>
<p>Usage example: </p><div class="fragment"><div class="line"><span class="keywordtype">void</span> process(InputStream&amp; stream);</div><div class="line"></div><div class="line"><a class="code" href="classsf_1_1MemoryInputStream.html#a2d78851a69a8956a79872be41bcdfe0e">MemoryInputStream</a> stream;</div><div class="line">stream.open(thePtr, theSize);</div><div class="line">process(stream);</div></div><!-- fragment --><p><a class="el" href="classsf_1_1InputStream.html" title="Abstract class for custom file input streams. ">InputStream</a>, <a class="el" href="classsf_1_1FileInputStream.html" title="Implementation of input stream based on a file. ">FileInputStream</a> </p>
<p class="definition">Definition at line <a class="el" href="MemoryInputStream_8hpp_source.html#l00043">43</a> of file <a class="el" href="MemoryInputStream_8hpp_source.html">MemoryInputStream.hpp</a>.</p>
</div><h2 class="groupheader">Constructor &amp; Destructor Documentation</h2>
<a id="a2d78851a69a8956a79872be41bcdfe0e"></a>
<h2 class="memtitle"><span class="permalink"><a href="#a2d78851a69a8956a79872be41bcdfe0e">&#9670;&nbsp;</a></span>MemoryInputStream()</h2>
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<td class="memname">sf::MemoryInputStream::MemoryInputStream </td>
<td>(</td>
<td class="paramname"></td><td>)</td>
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<p>Default constructor. </p>
</div>
</div>
<h2 class="groupheader">Member Function Documentation</h2>
<a id="a6ade3ca45de361ffa0a718595f0b6763"></a>
<h2 class="memtitle"><span class="permalink"><a href="#a6ade3ca45de361ffa0a718595f0b6763">&#9670;&nbsp;</a></span>getSize()</h2>
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<td class="memname">virtual Int64 sf::MemoryInputStream::getSize </td>
<td>(</td>
<td class="paramname"></td><td>)</td>
<td></td>
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<p>Return the size of the stream. </p>
<dl class="section return"><dt>Returns</dt><dd>The total number of bytes available in the stream, or -1 on error </dd></dl>
<p>Implements <a class="el" href="classsf_1_1InputStream.html#a311eaaaa65d636728e5153b574b72d5d">sf::InputStream</a>.</p>
</div>
</div>
<a id="ad3cfb4f4f915f7803d6a0784e394ac19"></a>
<h2 class="memtitle"><span class="permalink"><a href="#ad3cfb4f4f915f7803d6a0784e394ac19">&#9670;&nbsp;</a></span>open()</h2>
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<td class="memname">void sf::MemoryInputStream::open </td>
<td>(</td>
<td class="paramtype">const void *&#160;</td>
<td class="paramname"><em>data</em>, </td>
</tr>
<tr>
<td class="paramkey"></td>
<td></td>
<td class="paramtype">std::size_t&#160;</td>
<td class="paramname"><em>sizeInBytes</em>&#160;</td>
</tr>
<tr>
<td></td>
<td>)</td>
<td></td><td></td>
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<p>Open the stream from its data. </p>
<dl class="params"><dt>Parameters</dt><dd>
<table class="params">
<tr><td class="paramname">data</td><td>Pointer to the data in memory </td></tr>
<tr><td class="paramname">sizeInBytes</td><td>Size of the data, in bytes </td></tr>
</table>
</dd>
</dl>
</div>
</div>
<a id="adff5270c521819639154d42d76fd4c34"></a>
<h2 class="memtitle"><span class="permalink"><a href="#adff5270c521819639154d42d76fd4c34">&#9670;&nbsp;</a></span>read()</h2>
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<td class="memname">virtual Int64 sf::MemoryInputStream::read </td>
<td>(</td>
<td class="paramtype">void *&#160;</td>
<td class="paramname"><em>data</em>, </td>
</tr>
<tr>
<td class="paramkey"></td>
<td></td>
<td class="paramtype">Int64&#160;</td>
<td class="paramname"><em>size</em>&#160;</td>
</tr>
<tr>
<td></td>
<td>)</td>
<td></td><td></td>
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<span class="mlabels"><span class="mlabel">virtual</span></span> </td>
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<p>Read data from the stream. </p>
<p>After reading, the stream's reading position must be advanced by the amount of bytes read.</p>
<dl class="params"><dt>Parameters</dt><dd>
<table class="params">
<tr><td class="paramname">data</td><td>Buffer where to copy the read data </td></tr>
<tr><td class="paramname">size</td><td>Desired number of bytes to read</td></tr>
</table>
</dd>
</dl>
<dl class="section return"><dt>Returns</dt><dd>The number of bytes actually read, or -1 on error </dd></dl>
<p>Implements <a class="el" href="classsf_1_1InputStream.html#a8dd89c74c1acb693203f50e750c6ae53">sf::InputStream</a>.</p>
</div>
</div>
<a id="aa2ac8fda2bdb4c95248ae90c71633034"></a>
<h2 class="memtitle"><span class="permalink"><a href="#aa2ac8fda2bdb4c95248ae90c71633034">&#9670;&nbsp;</a></span>seek()</h2>
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<td class="memname">virtual Int64 sf::MemoryInputStream::seek </td>
<td>(</td>
<td class="paramtype">Int64&#160;</td>
<td class="paramname"><em>position</em></td><td>)</td>
<td></td>
</tr>
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</td>
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<span class="mlabels"><span class="mlabel">virtual</span></span> </td>
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<p>Change the current reading position. </p>
<dl class="params"><dt>Parameters</dt><dd>
<table class="params">
<tr><td class="paramname">position</td><td>The position to seek to, from the beginning</td></tr>
</table>
</dd>
</dl>
<dl class="section return"><dt>Returns</dt><dd>The position actually sought to, or -1 on error </dd></dl>
<p>Implements <a class="el" href="classsf_1_1InputStream.html#a76aba8e5d5cf9b1c5902d5e04f7864fc">sf::InputStream</a>.</p>
</div>
</div>
<a id="a7ad4bdf721f29de8f66421ff29e23ee4"></a>
<h2 class="memtitle"><span class="permalink"><a href="#a7ad4bdf721f29de8f66421ff29e23ee4">&#9670;&nbsp;</a></span>tell()</h2>
<div class="memitem">
<div class="memproto">
<table class="mlabels">
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<td class="mlabels-left">
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<td class="memname">virtual Int64 sf::MemoryInputStream::tell </td>
<td>(</td>
<td class="paramname"></td><td>)</td>
<td></td>
</tr>
</table>
</td>
<td class="mlabels-right">
<span class="mlabels"><span class="mlabel">virtual</span></span> </td>
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<p>Get the current reading position in the stream. </p>
<dl class="section return"><dt>Returns</dt><dd>The current position, or -1 on error. </dd></dl>
<p>Implements <a class="el" href="classsf_1_1InputStream.html#a599515b9ccdbddb6fef5a98424fd559c">sf::InputStream</a>.</p>
</div>
</div>
<hr/>The documentation for this class was generated from the following file:<ul>
<li><a class="el" href="MemoryInputStream_8hpp_source.html">MemoryInputStream.hpp</a></li>
</ul>
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