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diff --git a/engine-ocean/External/glew/auto/EGL-Registry/sdk/docs/man/html/eglSwapBuffers.xhtml b/engine-ocean/External/glew/auto/EGL-Registry/sdk/docs/man/html/eglSwapBuffers.xhtml new file mode 100644 index 0000000..b256152 --- /dev/null +++ b/engine-ocean/External/glew/auto/EGL-Registry/sdk/docs/man/html/eglSwapBuffers.xhtml @@ -0,0 +1,196 @@ +<?xml version="1.0" encoding="UTF-8" standalone="no"?> +<!DOCTYPE html><html xmlns="http://www.w3.org/1999/xhtml"> + <head> + <title xmlns:xlink="http://www.w3.org/1999/xlink">eglSwapBuffers - EGL Reference Pages</title> + <link rel="stylesheet" type="text/css" href="khronos-man.css"/> + <meta name="generator" content="DocBook XSL Stylesheets V1.79.1"/> + </head> + <body> + <header/> + <div class="refentry" id="eglSwapBuffers"> + <div class="titlepage"/> + <div class="refnamediv"> + <h2>Name</h2> + <p>eglSwapBuffers — + post <abbr class="acronym">EGL</abbr> surface color buffer to a native window + </p> + </div> + <div class="refsynopsisdiv"> + <h2>C Specification</h2> + <div class="funcsynopsis"> + <table style="border: 0; cellspacing: 0; cellpadding: 0;" class="funcprototype-table"> + <tr> + <td> + <code class="funcdef">EGLBoolean <strong class="fsfunc">eglSwapBuffers</strong>(</code> + </td> + <td>EGLDisplay <var class="pdparam">display</var>, </td> + </tr> + <tr> + <td> </td> + <td>EGLSurface <var class="pdparam">surface</var><code>)</code>;</td> + </tr> + </table> + <div class="funcprototype-spacer"> </div> + </div> + </div> + <div class="refsect1" id="parameters"> + <h2>Parameters</h2> + <div class="variablelist"> + <dl class="variablelist"> + <dt> + <span class="term"> + <em class="parameter"> + <code>display</code> + </em> + </span> + </dt> + <dd> + <p> + Specifies the EGL display connection. + </p> + </dd> + <dt> + <span class="term"> + <em class="parameter"> + <code>surface</code> + </em> + </span> + </dt> + <dd> + <p> + Specifies the EGL drawing surface whose buffers are to be swapped. + </p> + </dd> + </dl> + </div> + </div> + <div class="refsect1" id="description"> + <h2>Description</h2> + <p> + If <em class="parameter"><code>surface</code></em> is a back-buffered window + surface, then the color + buffer is copied (posted) to the native window associated with that + surface. If <em class="parameter"><code>surface</code></em> is a single-buffered + window, pixmap, or pixel buffer surface, + <code class="function">eglSwapBuffers</code> has no effect. + </p> + <p> + The contents of ancillary buffers are always undefined after + calling <code class="function">eglSwapBuffers</code>. The contents of the + color buffer are undefined if the value of the + <code class="constant">EGL_SWAP_BEHAVIOR</code> attribute of + <em class="parameter"><code>surface</code></em> is not + <code class="constant">EGL_BUFFER_PRESERVED</code>. The value of + <code class="constant">EGL_SWAP_BEHAVIOR</code> can be set for some + surfaces using + <a class="citerefentry" href="eglSurfaceAttrib.xhtml"><span class="citerefentry"><span class="refentrytitle">eglSurfaceAttrib</span></span></a>. + <code class="constant">EGL_SWAP_BEHAVIOR</code> applies only to the color + buffer. EGL has no way to specify or query whether or not + ancillary buffers are preserved, and applications should not + rely on this behavior. + </p> + <p> + <code class="function">eglSwapBuffers</code> performs an implicit + flush operation on the context (<code class="function">glFlush</code> + for an OpenGL ES or OpenGL context, + <code class="function">vgFlush</code> for an OpenVG context) bound to + <em class="parameter"><code>surface</code></em> before swapping. Subsequent + client API commands may be issued on that context + immediately after calling + <code class="function">eglSwapBuffers</code>, but are not executed + until the buffer exchange is completed. + </p> + </div> + <div class="refsect1" id="resize"> + <h2>Native Window Resizing</h2> + <p> + If the native window corresponding to + <em class="parameter"><code>surface</code></em> has been resized prior to the + swap, <em class="parameter"><code>surface</code></em> must be resized to match. + <em class="parameter"><code>surface</code></em> will normally be resized by the + EGL implementation at the time the native window is resized. If + the implementation cannot do this transparently to the client, + then <code class="function">eglSwapBuffers</code> must detect the change + and resize surface prior to copying its pixels to the native + window. If <em class="parameter"><code>surface</code></em> shrinks as a result of + resizing, some rendered pixels are lost. If + <em class="parameter"><code>surface</code></em> grows, the newly allocated buffer + contents are undefined. The resizing behavior described here + only maintains consistency of EGL surfaces and native windows; + clients are still responsible for detecting window size changes + (using platform-specific means) and changing their viewport and + scissor regions accordingly. + </p> + </div> + <div class="refsect1" id="notes"> + <h2>Notes</h2> + <p> + Attribute <code class="constant">EGL_SWAP_BEHAVIOR</code> is supported + only if the EGL version is 1.2 or greater. In earlier versions, + behavior is as though the attribute exists, and always has the + value <code class="constant">EGL_BUFFER_DESTROYED</code>. + </p> + <p> + The EGL 1.4 specification was updated to acknowledge that + ancillary buffers are not necessarily preserved after a swap, + and that the <code class="constant">EGL_SWAP_BEHAVIOR</code> attribute + applies only to the color buffer. This change in the + specification acknowledged the behavior of many shipping + implementations, and is not intended to result in behavior + changes in any existing implementation. + </p> + </div> + <div class="refsect1" id="errors"> + <h2>Errors</h2> + <p> + <code class="constant">EGL_FALSE</code> is returned if swapping of the + surface buffers fails, <code class="constant">EGL_TRUE</code> otherwise. + </p> + <p> + <code class="constant">EGL_BAD_DISPLAY</code> is generated if + <em class="parameter"><code>display</code></em> is not an EGL display connection. + </p> + <p> + <code class="constant">EGL_NOT_INITIALIZED</code> is generated if + <em class="parameter"><code>display</code></em> has not been initialized. + </p> + <p> + <code class="constant">EGL_BAD_SURFACE</code> is generated if + <em class="parameter"><code>surface</code></em> is not an EGL drawing surface. + </p> + <p> + <code class="constant">EGL_CONTEXT_LOST</code> is generated if a power management + event has occurred. The application must destroy all contexts and + reinitialise OpenGL ES state and objects to continue rendering. + </p> + </div> + <div class="refsect1" id="seealso"> + <h2>See Also</h2> + <p> + <code class="function">glFlush</code>, + <a class="citerefentry" href="eglCopyBuffers.xhtml"><span class="citerefentry"><span class="refentrytitle">eglCopyBuffers</span></span></a>, + <code class="function">vgFlush</code> + </p> + </div> + <p> + </p> + <div class="refsect3" id="copyright"> + <img src="KhronosLogo.jpg"/> + <p> + Copyright © 2003-2014 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. + </p> + </div> + <p> +</p> + </div> + <footer/> + </body> +</html> |