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</style><table class="infobox vevent"><tbody><tr><th colspan="2" class="infobox-above summary">EGL (OpenGL)</th></tr><tr><td colspan="2" class="infobox-image logo"><span typeof="mw:File"></span></td></tr><tr><th scope="row" class="infobox-label" style="white-space: nowrap;"><a href="Programmer" title="Programmer">Original author(s)</a></th><td class="infobox-data"><a href="Khronos_Group" title="Khronos Group">Khronos Group</a></td></tr><tr><th scope="row" class="infobox-label" style="white-space: nowrap;"><a href="Programmer" title="Programmer">Developer(s)</a></th><td class="infobox-data"><a href="Khronos_Group" title="Khronos Group">Khronos Group</a></td></tr><tr style="display: none;"><td colspan="2" class="infobox-full-data"></td></tr><tr><th scope="row" class="infobox-label" style="white-space: nowrap;"><a href="Software_release_life_cycle" title="Software release life cycle">Stable release</a></th><td class="infobox-data"><div style="margin:0px;">1.5<sup id="cite_ref-1" class="reference"><a href="#cite_note-1"><span class="cite-bracket">[</span>1<span class="cite-bracket">]</span></a></sup>

/ March 19, 2014<span style="display:none"> (<span class="bday dtstart published updated">2014-03-19</span>)</span></div></td></tr><tr style="display:none"><td colspan="2">

</td></tr><tr><th scope="row" class="infobox-label" style="white-space: nowrap;">Written in</th><td class="infobox-data"><a href="C_(programming_language)" title="C (programming language)">C</a></td></tr><tr><th scope="row" class="infobox-label" style="white-space: nowrap;"><a href="Operating_system" title="Operating system">Operating system</a></th><td class="infobox-data"><a href="Cross-platform" class="mw-redirect" title="Cross-platform">Cross-platform</a></td></tr><tr><th scope="row" class="infobox-label" style="white-space: nowrap;"><a href="Computing_platform" title="Computing platform">Platform</a></th><td class="infobox-data">Cross-platform</td></tr><tr><th scope="row" class="infobox-label" style="white-space: nowrap;"><a href="Software_categories#Categorization_approaches" title="Software categories">Type</a></th><td class="infobox-data"><a href="Application_programming_interface" class="mw-redirect" title="Application programming interface">API</a></td></tr><tr><th scope="row" class="infobox-label" style="white-space: nowrap;">Website</th><td class="infobox-data"><span class="url"><a rel="nofollow" class="external text" href="https://www.khronos.org/egl/">www<wbr>.khronos<wbr>.org<wbr>/egl<wbr>/</a></span></td></tr></tbody></table>

<p><b>EGL</b> is an <a href="Interface_(computing)" title="Interface (computing)">interface</a> between <a href="Khronos_Group" title="Khronos Group">Khronos</a> <a href="Rendering_API" class="mw-redirect" title="Rendering API">rendering APIs</a> (such as <a href="OpenGL" title="OpenGL">OpenGL</a>, <a href="OpenGL_ES" title="OpenGL ES">OpenGL ES</a> or <a href="OpenVG" title="OpenVG">OpenVG</a>) and the underlying native platform <a href="Windowing_system" title="Windowing system">windowing system</a>. EGL handles graphics context management, <a href="Computer_representation_of_surfaces" title="Computer representation of surfaces">surface</a>/<a href="Data_buffer" title="Data buffer">buffer</a> binding, <a href="Rendering_(computer_graphics)" title="Rendering (computer graphics)">rendering</a> synchronization, and enables "high-performance, accelerated, mixed-mode <a href="2D_computer_graphics" title="2D computer graphics">2D</a> and <a href="3D_computer_graphics" title="3D computer graphics">3D</a> rendering using other Khronos APIs."<sup id="cite_ref-2" class="reference"><a href="#cite_note-2"><span class="cite-bracket">[</span>2<span class="cite-bracket">]</span></a></sup> EGL is managed by the <a href="Non-profit_organization" class="mw-redirect" title="Non-profit organization">non-profit</a> technology consortium <a href="Khronos_Group" title="Khronos Group">Khronos Group</a>.

</p><p>The acronym <i>EGL</i> is an <a href="Initialism" class="mw-redirect" title="Initialism">initialism</a>, which starting from EGL version 1.2 refers to <i>Khronos Native Platform Graphics Interface</i>.<sup id="cite_ref-3" class="reference"><a href="#cite_note-3"><span class="cite-bracket">[</span>3<span class="cite-bracket">]</span></a></sup> Prior to version 1.2, the name of the EGL specification was <i>OpenGL ES Native Platform Graphics Interface</i>.<sup id="cite_ref-4" class="reference"><a href="#cite_note-4"><span class="cite-bracket">[</span>4<span class="cite-bracket">]</span></a></sup> <a href="X.Org_Foundation" title="X.Org Foundation">X.Org</a> development documentation glossary defines EGL as "Embedded-System Graphics Library".<sup id="cite_ref-5" class="reference"><a href="#cite_note-5"><span class="cite-bracket">[</span>5<span class="cite-bracket">]</span></a></sup>

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<div class="mw-heading mw-heading2"><h2 id="Adoption">Adoption</h2></div>

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</style><div class="thumb tmulti tright"><div class="thumbinner multiimageinner" style="width:304px;max-width:304px"><div class="trow"><div class="theader">As an interface between <a href="OpenGL_ES" title="OpenGL ES">OpenGL ES</a> or <a href="OpenVG" title="OpenVG">OpenVG</a> and the underlying <a href="Display_server" class="mw-redirect" title="Display server">windowing system</a>, EGL has found wide adoption</div></div><div class="trow"><div class="tsingle" style="width:302px;max-width:302px"><div class="thumbimage"><span typeof="mw:File"></span></div><div class="thumbcaption"><a href="Wayland_(display_server_protocol)" class="mw-redirect" title="Wayland (display server protocol)">Wayland</a> clients use EGL to directly draw into the <a href="Framebuffer" title="Framebuffer">framebuffer</a>. The display server sits between the <a href="Kernel_(operating_system)" title="Kernel (operating system)">kernel</a> (<i>here: <a href="Linux_kernel" title="Linux kernel">Linux kernel</a></i>) and its clients. It communicates with its clients over a given protocol.</div></div></div><div class="trow"><div class="tsingle" style="width:302px;max-width:302px"><div class="thumbimage"><span typeof="mw:File"></span></div><div class="thumbcaption">The free implementations of the <a href="Wayland_(display_server_protocol)" class="mw-redirect" title="Wayland (display server protocol)">Wayland (display server protocol)</a> rely upon the <a href="Mesa_(computer_graphics)" title="Mesa (computer graphics)">Mesa</a> implementation of <b>EGL</b>. A special library called <b>libwayland-EGL</b> was written to accommodate the access to the <a href="Framebuffer" title="Framebuffer">framebuffer</a></div></div></div></div></div>

<ul><li>The <a href="BlackBerry_10" title="BlackBerry 10">BlackBerry 10</a> and <a href="BlackBerry_Tablet_OS" title="BlackBerry Tablet OS">BlackBerry Tablet OS</a> mobile device operating system uses EGL for 3D graphics rendering. Both support EGL version 1.4.<sup id="cite_ref-6" class="reference"><a href="#cite_note-6"><span class="cite-bracket">[</span>6<span class="cite-bracket">]</span></a></sup></li>

<li>The <a href="Android_(operating_system)" title="Android (operating system)">Android</a> mobile device operating system uses EGL for 3D graphics rendering.<sup id="cite_ref-7" class="reference"><a href="#cite_note-7"><span class="cite-bracket">[</span>7<span class="cite-bracket">]</span></a></sup></li>

<li>The <a href="Wayland_(display_server_protocol)" class="mw-redirect" title="Wayland (display server protocol)">Wayland</a> display server protocol uses EGL.<sup id="cite_ref-8" class="reference"><a href="#cite_note-8"><span class="cite-bracket">[</span>8<span class="cite-bracket">]</span></a></sup> It is implemented in a way that Wayland clients will draw directly to the framebuffer using EGL.</li>

<li><a href="Mesa_3D_(OpenGL)" class="mw-redirect" title="Mesa 3D (OpenGL)">Mesa 3D</a> has an implementation of EGL formerly known as Eagle.<sup id="cite_ref-9" class="reference"><a href="#cite_note-9"><span class="cite-bracket">[</span>9<span class="cite-bracket">]</span></a></sup></li>

<li>The <a href="Mir_(display_server_protocol)" class="mw-redirect" title="Mir (display server protocol)">Mir</a> display server protocol by <a href="Canonical_Ltd." class="mw-redirect" title="Canonical Ltd.">Canonical Ltd.</a> uses EGL.<sup id="cite_ref-10" class="reference"><a href="#cite_note-10"><span class="cite-bracket">[</span>10<span class="cite-bracket">]</span></a></sup></li>

<li>The <a href="Simple_DirectMedia_Layer" title="Simple DirectMedia Layer">Simple DirectMedia Layer</a> toolkit has been ported to use EGL. It can use <a href="Xlib" title="Xlib">Xlib</a>, write directly to the <a href="Framebuffer" title="Framebuffer">framebuffer</a> or use EGL.</li>

<li>The <a href="Raspberry_Pi" title="Raspberry Pi">Raspberry Pi</a> single-board computer has an EGL interface to hardware-accelerated 3D graphics rendering.<sup id="cite_ref-11" class="reference"><a href="#cite_note-11"><span class="cite-bracket">[</span>11<span class="cite-bracket">]</span></a></sup></li>

<li>The proprietary <a href="Nvidia" title="Nvidia">Nvidia</a> driver 331.13 BETA from 4 October 2013 supports the EGL API.<sup id="cite_ref-12" class="reference"><a href="#cite_note-12"><span class="cite-bracket">[</span>12<span class="cite-bracket">]</span></a></sup></li>

<li><a href="Tizen" title="Tizen">Tizen</a> OS uses EGL with either OpenGL ES 1.1 or OpenGL ES 2.0 for 3D graphics rendering<sup id="cite_ref-13" class="reference"><a href="#cite_note-13"><span class="cite-bracket">[</span>13<span class="cite-bracket">]</span></a></sup></li></ul>

<div class="mw-heading mw-heading2"><h2 id="Implementations">Implementations</h2></div>

<ul><li><a href="Mesa_(computer_graphics)" title="Mesa (computer graphics)">Mesa</a> is a <a href="Free_and_open-source_software" title="Free and open-source software">free and open-source software</a> implementation of many graphic rendering APIs; among them is EGL.</li>

<li><a href="Generic_Buffer_Management" class="mw-redirect" title="Generic Buffer Management">Generic Buffer Management</a> is an API to manage buffers.</li></ul>

<ul><li><a href="WGL_(API)" title="WGL (API)">WGL</a> – the equivalent <a href="Windows" class="mw-redirect" title="Windows">Windows</a> interface to OpenGL</li>

<li><a href="Core_OpenGL" title="Core OpenGL">CGL</a> – the equivalent <a href="OS_X" class="mw-redirect" title="OS X">OS X</a> interface to OpenGL</li>

<li><a href="GLX" title="GLX">GLX</a> – the equivalent <a href="X11" class="mw-redirect" title="X11">X11</a> interface to OpenGL

<ul><li><a href="AIGLX" title="AIGLX">AIGLX</a> – an attempt to accelerate GLX</li></ul></li>

<li><a href="Vulkan_(API)" class="mw-redirect" title="Vulkan (API)">WSI</a> – the Vulkan Window System Interface (WSI) does for Vulkan what EGL does for OpenGL ES.</li></ul>

<div class="mw-heading mw-heading2"><h2 id="References">References</h2></div>

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</style><cite class="citation web cs1"><a rel="nofollow" class="external text" href="https://www.khronos.org/news/press/khronos-releases-egl-1.5-specification">"Press Release, Khronos Releases EGL 1.5 Specification"</a>. <a href="Khronos_Group" title="Khronos Group">Khronos Group</a>. 2014-03-19<span class="reference-accessdate">. Retrieved <span class="nowrap">2014-03-20</span></span>.</cite></span>

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<li id="cite_note-2"><span class="mw-cite-backlink"><b><a href="#cite_ref-2">^</a></b></span> <span class="reference-text"><cite class="citation web cs1"><a rel="nofollow" class="external text" href="https://www.khronos.org/egl/">"EGL Overview, Native Platform Interface"</a>. <i>The Khronos Group</i>. July 19, 2011.</cite></span>

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<li id="cite_note-13"><span class="mw-cite-backlink"><b><a href="#cite_ref-13">^</a></b></span> <span class="reference-text"><cite class="citation web cs1"><a rel="nofollow" class="external text" href="https://web.archive.org/web/20150427204349/https://wiki.tizen.org/wiki/Porting_Guide/Graphics_and_UI">"Porting Guide/Graphics and UI - Tizen Wiki"</a>. Archived from <a rel="nofollow" class="external text" href="https://wiki.tizen.org/wiki/Porting_Guide/Graphics_and_UI">the original</a> on 2015-04-27<span class="reference-accessdate">. Retrieved <span class="nowrap">2015-03-06</span></span>.</cite></span>

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<div class="mw-heading mw-heading2"><h2 id="External_links">External links</h2></div>

<ul><li><span class="official-website"><span class="url"><a rel="nofollow" class="external text" href="https://www.khronos.org/egl/">Official website</a></span></span></li></ul>

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</style><div id="Khronos_Group_Standards41" style="font-size:114%;margin:0 4em"><a href="Khronos_Group" title="Khronos Group">Khronos Group</a> Standards</div></th></tr><tr><th scope="row" class="navbox-group" style="width:1%">Active</th><td class="navbox-list-with-group navbox-list navbox-odd hlist" style="width:100%;padding:0"><div style="padding:0 0.25em">

<ul>

<li><a href="OpenCL" title="OpenCL">OpenCL</a></li>

<li><a href="OpenVG" title="OpenVG">OpenVG</a></li>

<li><a href="OpenVX" title="OpenVX">OpenVX</a></li>

<li><a href="OpenXR" title="OpenXR">OpenXR</a></li>

<li><a href="Vulkan" title="Vulkan">Vulkan</a></li></ul>

</div></td></tr><tr><th scope="row" class="navbox-group" style="width:1%">Inactive</th><td class="navbox-list-with-group navbox-list navbox-even hlist" style="width:100%;padding:0"><div style="padding:0 0.25em">

<ul><li><a href="COLLADA" title="COLLADA">COLLADA</a></li>

<li><a href="OpenGL" title="OpenGL">OpenGL</a>

<li><a href="WebGL" title="WebGL">WebGL</a></li></ul></li>

<li><a href="OpenKODE" title="OpenKODE">OpenKODE</a></li>

<li><a href="OpenMAX" title="OpenMAX">OpenMAX</a></li>

<li><a href="OpenSL_ES" title="OpenSL ES">OpenSL ES</a></li>

<li><a href="OpenWF" title="OpenWF">OpenWF</a></li>

<li><a href="WebCL" title="WebCL">WebCL</a></li></ul>

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This article is issued from <a class="external text" title="Last edited on 2024-11-23" href="https://en.wikipedia.org/wiki/?title=EGL_(API)&oldid=1259147416">Wikipedia</a>. The text is available under <a class="external text" href="https://creativecommons.org/licenses/by-sa/4.0/deed.en">Creative Commons Attribution-Share Alike 4.0</a> unless otherwise noted. Additional terms may apply for the media files.

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