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| <title>gl_sharing</title> |
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| <body> |
| <div class="refentry"> |
| <a id="idp42480192"></a> |
| <div class="titlepage"></div> |
| <div xmlns="" class="refnamediv"> |
| <a xmlns="http://www.w3.org/1999/xhtml" id="gl_sharing"></a> |
| <h1>gl_sharing</h1> |
| <p> |
| Allow applications to use OpenGL buffer, texture |
| and renderbuffer objects as OpenCL memory objects. |
| </p> |
| </div> |
| <div class="refsect2"> |
| <a id="synopsis"></a> |
| <h3> |
| </h3> |
| <div class="informaltable"> |
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| <colgroup> |
| <col align="left" class="col1" /> |
| </colgroup> |
| <tbody> |
| <tr> |
| <td align="left"> |
| #pragma OPENCL EXTENSION CL_APPLE_gl_sharing : enable |
| #pragma OPENCL EXTENSION CL_KHR_gl_sharing : enable |
| </td> |
| </tr> |
| </tbody> |
| </table> |
| </div> |
| </div> |
| <div class="refsect1"> |
| <a id="description"></a> |
| <h2>Description</h2> |
| <p> |
| These OpenCL functions allow applications to use OpenGL buffer, texture |
| and renderbuffer objects as OpenCL memory objects. This allows efficient sharing of data |
| between OpenCL and OpenGL. The OpenCL API may be used to execute kernels that read |
| and/or write memory objects that are also OpenGL objects. An OpenCL image object may be created from an OpenGL texture or renderbuffer object. An |
| OpenCL buffer object may be created from an OpenGL buffer object. |
| </p> |
| <p> |
| OpenCL memory objects may be created from OpenGL objects only if the OpenCL context has been created from an OpenGL share group object or context. OpenGL share groups and contexts are created using platform-specific APIs such as EGL, CGL, WGL, and GLX. |
| </p> |
| <p> |
| On MacOS X, an OpenCL context may be created from an OpenGL share group object using the OpenCL platform extension <code class="function">CL_APPLE_gl_sharing</code>. |
| </p> |
| <p> |
| On other platforms including Microsoft Windows, Linux/Unix and others, an OpenCL context may be created from an OpenGL context using the Khronos platform extension <code class="function">CL_KHR_gl_sharing</code>. Refer to the platform documentation for your OpenCL implementation, or visit the Khronos Registry at <a href="http://www.khronos.org/registry/cl/">http://www.khronos.org/registry/cl/</a> for more information. |
| |
| </p> |
| <p> |
| Any supported OpenGL object defined within the GL share group object, or the share group |
| associated with the GL context from which the CL context is created, may be shared, with the |
| exception of the default OpenGL objects (i.e. objects named zero), which may not be shared. |
| </p> |
| </div> |
| <div class="refsect1"> |
| <a id="specification"></a> |
| <h2>Specification</h2> |
| <p> |
| <img src="pdficon_small1.gif" /> |
| |
| <a href="http://www.khronos.org/registry/cl/specs/opencl-1.x-latest.pdf#page=279" target="OpenCL Spec">OpenCL Specification</a> |
| </p> |
| </div> |
| <div class="refsect1"> |
| <a id="seealso"></a> |
| <h2>Also see</h2> |
| <p> |
| <a class="citerefentry" href="EXTENSION.html"><span class="citerefentry"><span class="refentrytitle">EXTENSION</span></span></a> |
| </p> |
| </div> |
| <div xmlns="" class="refsect3" lang="en" xml:lang="en"><a xmlns="http://www.w3.org/1999/xhtml" id="Copyright"></a><h4 xmlns="http://www.w3.org/1999/xhtml"></h4><img xmlns="http://www.w3.org/1999/xhtml" src="KhronosLogo.jpg" /><p xmlns="http://www.w3.org/1999/xhtml"></p>Copyright © 2007-2009 The Khronos Group Inc. |
| Permission is hereby granted, free of charge, to any person obtaining a |
| copy of this software and/or associated documentation files (the |
| "Materials"), to deal in the Materials without restriction, including |
| without limitation the rights to use, copy, modify, merge, publish, |
| distribute, sublicense, and/or sell copies of the Materials, and to |
| permit persons to whom the Materials are furnished to do so, subject to |
| the condition that this copyright notice and permission notice shall be included |
| in all copies or substantial portions of the Materials. |
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