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  25 <div class="refentry">
  26 <a name="boost.compute.opengl_texture"></a><div class="titlepage"></div>
  27 <div class="refnamediv">
  28 <h2><span class="refentrytitle">Class opengl_texture</span></h2>
  29 <p>boost::compute::opengl_texture</p>
  30 </div>
  31 <h2 xmlns:rev="http://www.cs.rpi.edu/~gregod/boost/tools/doc/revision" class="refsynopsisdiv-title">Synopsis</h2>
  32 <div xmlns:rev="http://www.cs.rpi.edu/~gregod/boost/tools/doc/revision" class="refsynopsisdiv"><pre class="synopsis"><span class="comment">// In header: &lt;<a class="link" href="../../boost_compute/reference.html#header.boost.compute.interop.opengl.opengl_texture_hpp" title="Header &lt;boost/compute/interop/opengl/opengl_texture.hpp&gt;">boost/compute/interop/opengl/opengl_texture.hpp</a>&gt;
  33
  34 </span>
  35 <span class="keyword">class</span> <a class="link" href="opengl_texture.html" title="Class opengl_texture">opengl_texture</a> <span class="special">:</span> <span class="keyword">public</span> <span class="identifier">boost</span><span class="special">::</span><span class="identifier">compute</span><span class="special">::</span><span class="identifier">image_object</span> <span class="special">{</span>
  36 <span class="keyword">public</span><span class="special">:</span>
  37   <span class="comment">// <a class="link" href="opengl_texture.html#boost.compute.opengl_textureconstruct-copy-destruct">construct/copy/destruct</a></span>
  38   <a class="link" href="opengl_texture.html#idm46009692395600-bb"><span class="identifier">opengl_texture</span></a><span class="special">(</span><span class="special">)</span><span class="special">;</span>
  39   <span class="keyword">explicit</span> <a class="link" href="opengl_texture.html#idm46009692395008-bb"><span class="identifier">opengl_texture</span></a><span class="special">(</span><span class="identifier">cl_mem</span><span class="special">,</span> <span class="keyword">bool</span> <span class="special">=</span> <span class="keyword">true</span><span class="special">)</span><span class="special">;</span>
  40   <a class="link" href="opengl_texture.html#idm46009692392016-bb"><span class="identifier">opengl_texture</span></a><span class="special">(</span><span class="keyword">const</span> <span class="identifier">context</span> <span class="special">&amp;</span><span class="special">,</span> <span class="identifier">GLenum</span><span class="special">,</span> <span class="identifier">GLint</span><span class="special">,</span> <span class="identifier">GLuint</span><span class="special">,</span>
  41                  <span class="identifier">cl_mem_flags</span> <span class="special">=</span> <span class="identifier">read_write</span><span class="special">)</span><span class="special">;</span>
  42   <a class="link" href="opengl_texture.html#idm46009692385136-bb"><span class="identifier">opengl_texture</span></a><span class="special">(</span><span class="keyword">const</span> <a class="link" href="opengl_texture.html" title="Class opengl_texture">opengl_texture</a> <span class="special">&amp;</span><span class="special">)</span><span class="special">;</span>
  43   <a class="link" href="opengl_texture.html" title="Class opengl_texture">opengl_texture</a> <span class="special">&amp;</span> <a class="link" href="opengl_texture.html#idm46009692382944-bb"><span class="keyword">operator</span><span class="special">=</span></a><span class="special">(</span><span class="keyword">const</span> <a class="link" href="opengl_texture.html" title="Class opengl_texture">opengl_texture</a> <span class="special">&amp;</span><span class="special">)</span><span class="special">;</span>
  44   <a class="link" href="opengl_texture.html#idm46009692380192-bb"><span class="special">~</span><span class="identifier">opengl_texture</span></a><span class="special">(</span><span class="special">)</span><span class="special">;</span>
  45
  46   <span class="comment">// <a class="link" href="opengl_texture.html#idm46009692404832-bb">public member functions</a></span>
  47   <a class="link" href="extents.html" title="Class template extents">extents</a><span class="special">&lt;</span> <span class="number">2</span> <span class="special">&gt;</span> <a class="link" href="opengl_texture.html#idm46009692404272-bb"><span class="identifier">size</span></a><span class="special">(</span><span class="special">)</span> <span class="keyword">const</span><span class="special">;</span>
  48   <a class="link" href="extents.html" title="Class template extents">extents</a><span class="special">&lt;</span> <span class="number">2</span> <span class="special">&gt;</span> <a class="link" href="opengl_texture.html#idm46009692402544-bb"><span class="identifier">origin</span></a><span class="special">(</span><span class="special">)</span> <span class="keyword">const</span><span class="special">;</span>
  49   <span class="keyword">template</span><span class="special">&lt;</span><span class="keyword">typename</span> T<span class="special">&gt;</span> <span class="identifier">T</span> <a class="link" href="opengl_texture.html#idm46009692399936-bb"><span class="identifier">get_texture_info</span></a><span class="special">(</span><span class="identifier">cl_gl_texture_info</span><span class="special">)</span> <span class="keyword">const</span><span class="special">;</span>
  50 <span class="special">}</span><span class="special">;</span></pre></div>
  51 <div class="refsect1">
  52 <a name="idm46113320251056"></a><h2>Description</h2>
  53 <p>A OpenCL <a class="link" href="image2d.html" title="Class image2d">image2d</a> for accessing an OpenGL texture object. </p>
  54 <div class="refsect2">
  55 <a name="idm46113320249488"></a><h3>
  56 <a name="boost.compute.opengl_textureconstruct-copy-destruct"></a><code class="computeroutput">opengl_texture</code>
  57         public
  58        construct/copy/destruct</h3>
  59 <div class="orderedlist"><ol class="orderedlist" type="1">
  60 <li class="listitem">
  61 <pre class="literallayout"><a name="idm46009692395600-bb"></a><span class="identifier">opengl_texture</span><span class="special">(</span><span class="special">)</span><span class="special">;</span></pre>Creates a null OpenGL texture object. </li>
  62 <li class="listitem">
  63 <pre class="literallayout"><span class="keyword">explicit</span> <a name="idm46009692395008-bb"></a><span class="identifier">opengl_texture</span><span class="special">(</span><span class="identifier">cl_mem</span> mem<span class="special">,</span> <span class="keyword">bool</span> retain <span class="special">=</span> <span class="keyword">true</span><span class="special">)</span><span class="special">;</span></pre>Creates a new OpenGL texture object for <code class="computeroutput">mem</code>. </li>
  64 <li class="listitem">
  65 <pre class="literallayout"><a name="idm46009692392016-bb"></a><span class="identifier">opengl_texture</span><span class="special">(</span><span class="keyword">const</span> <span class="identifier">context</span> <span class="special">&amp;</span> context<span class="special">,</span> <span class="identifier">GLenum</span> texture_target<span class="special">,</span> <span class="identifier">GLint</span> miplevel<span class="special">,</span>
  66                <span class="identifier">GLuint</span> texture<span class="special">,</span> <span class="identifier">cl_mem_flags</span> flags <span class="special">=</span> <span class="identifier">read_write</span><span class="special">)</span><span class="special">;</span></pre>
  67 <p>Creates a new OpenGL texture object in <code class="computeroutput">context</code> for <code class="computeroutput">texture</code> with <code class="computeroutput">flags</code>.</p>
  68 <p>See the documentation for <a href="http://www.khronos.org/registry/cl/sdk/1.2/docs/man/xhtml/clCreateFromGLTexture.html" target="_top">clCreateFromGLTexture()</a> for more information. </p>
  69 </li>
  70 <li class="listitem">
  71 <pre class="literallayout"><a name="idm46009692385136-bb"></a><span class="identifier">opengl_texture</span><span class="special">(</span><span class="keyword">const</span> <a class="link" href="opengl_texture.html" title="Class opengl_texture">opengl_texture</a> <span class="special">&amp;</span> other<span class="special">)</span><span class="special">;</span></pre>Creates a new OpenGL texture object as a copy of <code class="computeroutput">other</code>. </li>
  72 <li class="listitem">
  73 <pre class="literallayout"><a class="link" href="opengl_texture.html" title="Class opengl_texture">opengl_texture</a> <span class="special">&amp;</span> <a name="idm46009692382944-bb"></a><span class="keyword">operator</span><span class="special">=</span><span class="special">(</span><span class="keyword">const</span> <a class="link" href="opengl_texture.html" title="Class opengl_texture">opengl_texture</a> <span class="special">&amp;</span> other<span class="special">)</span><span class="special">;</span></pre>Copies the OpenGL texture object from <code class="computeroutput">other</code>. </li>
  74 <li class="listitem">
  75 <pre class="literallayout"><a name="idm46009692380192-bb"></a><span class="special">~</span><span class="identifier">opengl_texture</span><span class="special">(</span><span class="special">)</span><span class="special">;</span></pre>Destroys the texture object. </li>
  76 </ol></div>
  77 </div>
  78 <div class="refsect2">
  79 <a name="idm46113320199152"></a><h3>
  80 <a name="idm46009692404832-bb"></a><code class="computeroutput">opengl_texture</code> public member functions</h3>
  81 <div class="orderedlist"><ol class="orderedlist" type="1">
  82 <li class="listitem">
  83 <pre class="literallayout"><a class="link" href="extents.html" title="Class template extents">extents</a><span class="special">&lt;</span> <span class="number">2</span> <span class="special">&gt;</span> <a name="idm46009692404272-bb"></a><span class="identifier">size</span><span class="special">(</span><span class="special">)</span> <span class="keyword">const</span><span class="special">;</span></pre>Returns the size (width, height) of the texture. </li>
  84 <li class="listitem">
  85 <pre class="literallayout"><a class="link" href="extents.html" title="Class template extents">extents</a><span class="special">&lt;</span> <span class="number">2</span> <span class="special">&gt;</span> <a name="idm46009692402544-bb"></a><span class="identifier">origin</span><span class="special">(</span><span class="special">)</span> <span class="keyword">const</span><span class="special">;</span></pre>Returns the origin of the texture (<code class="computeroutput">0</code>, <code class="computeroutput">0</code>). </li>
  86 <li class="listitem">
  87 <pre class="literallayout"><span class="keyword">template</span><span class="special">&lt;</span><span class="keyword">typename</span> T<span class="special">&gt;</span> <span class="identifier">T</span> <a name="idm46009692399936-bb"></a><span class="identifier">get_texture_info</span><span class="special">(</span><span class="identifier">cl_gl_texture_info</span> info<span class="special">)</span> <span class="keyword">const</span><span class="special">;</span></pre>
  88 <p>Returns information about the texture.</p>
  89 <p>See the documentation for <a href="http://www.khronos.org/registry/cl/sdk/1.2/docs/man/xhtml/clGetGLTextureInfo.html" target="_top">clGetGLTextureInfo()</a> for more information. </p>
  90 </li>
  91 </ol></div>
  92 </div>
  93 </div>
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  97 <td align="right"><div class="copyright-footer">Copyright &#169; 2013, 2014 Kyle Lutz<p>
  98         Distributed under the Boost Software License, Version 1.0. (See accompanying
  99         file LICENSE_1_0.txt or copy at <a href="http://www.boost.org/LICENSE_1_0.txt" target="_top">http://www.boost.org/LICENSE_1_0.txt</a>)
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