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| <title>eglReleaseTexImage</title> |
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| </head> |
| <body> |
| <div class="refentry"> |
| <a id="eglReleaseTexImage"></a> |
| <div class="titlepage"></div> |
| <div xmlns="" class="refnamediv"> |
| <h1>eglReleaseTexImage</h1> |
| <p> |
| Releases a color buffer that is being used as a texture |
| </p> |
| </div> |
| <div class="refsynopsisdiv"> |
| <h2>C Specification</h2> |
| <div class="funcsynopsis"> |
| <table xmlns="" border="0" summary="Function synopsis" cellspacing="0" cellpadding="0"> |
| <tr valign="bottom"> |
| <td> |
| <code xmlns="http://www.w3.org/1999/xhtml" class="funcdef">EGLBoolean <strong class="fsfunc">eglReleaseTexImage</strong>(</code> |
| <td>EGLDisplay <var xmlns="http://www.w3.org/1999/xhtml" class="pdparam">display</var>, </td> |
| </td> |
| </tr> |
| <tr valign="top"> |
| <td> </td> |
| <td>EGLSurface <var xmlns="http://www.w3.org/1999/xhtml" class="pdparam">surface</var>, </td> |
| </tr> |
| <tr valign="top"> |
| <td> </td> |
| <td>EGLint <var xmlns="http://www.w3.org/1999/xhtml" class="pdparam">buffer</var><code>)</code></td> |
| </tr> |
| </table> |
| </div> |
| </div> |
| <div class="refsect1"> |
| <a id="parameters"></a> |
| <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 surface. |
| </p> |
| </dd> |
| <dt> |
| <span class="term"> |
| <em class="parameter"> |
| <code>buffer</code> |
| </em> |
| </span> |
| </dt> |
| <dd> |
| <p>Specifies the texture image data.</p> |
| </dd> |
| </dl> |
| </div> |
| </div> |
| <div class="refsect1"> |
| <a id="description"></a> |
| <h2>Description</h2> |
| <p> |
| The specified color buffer is released back to the surface. The surface is made |
| available for reading and writing when it no longer has any color buffers bound as |
| textures. |
| </p> |
| </div> |
| <div class="refsect1"> |
| <a id="notes"></a> |
| <h2>Notes</h2> |
| <p> |
| If the specified color buffer is no longer bound to a texture (e.g., because the |
| texture object was deleted) then eglReleaseTexImage has no effect. No error is |
| generated. |
| </p> |
| <p> |
| The contents of the color buffer are undefined when it is first released. In particular, |
| there is no guarantee that the texture image is still present. However, the contents of |
| other color buffers are unaffected by this call. Also, the contents of the depth and stencil buffers |
| are not affected by <a class="citerefentry" href="eglBindTexImage.html"><span class="citerefentry"><span class="refentrytitle">eglBindTexImage</span></span></a> |
| and <code class="function">eglReleaseTexImage</code>. |
| </p> |
| <p> |
| After a color buffer is released from a texture (either explicitly by calling |
| <code class="function">eglReleaseTexImage</code> or implicitly by calling a routine such as |
| <a class="citerefentry" href="glTexImage2D.html"><span class="citerefentry"><span class="refentrytitle">glTexImage2D</span></span></a>), |
| all texture images that were defined by the color buffer become <code class="constant">NULL</code> |
| (it is as if <a class="citerefentry" href="glTexImage.html"><span class="citerefentry"><span class="refentrytitle">glTexImage</span></span></a> was called with an image of zero width). |
| </p> |
| </div> |
| <div class="refsect1"> |
| <a id="errors"></a> |
| <h2>Errors</h2> |
| <p> |
| <code class="constant">EGL_BAD_MATCH</code> is generated if the |
| surface attribute <code class="constant">EGL_TEXTURE_FORMAT</code> is |
| set to <code class="constant">EGL_NO_TEXTURE</code>. |
| </p> |
| <p> |
| <code class="constant">EGL_BAD_MATCH</code> is generated if |
| <em class="parameter"><code>buffer</code></em> is not a valid buffer |
| (currently only <code class="constant">EGL_BACK_BUFFER</code> may be |
| specified). |
| </p> |
| <p> |
| <code class="constant">EGL_BAD_SURFACE</code> is generated if |
| <em class="parameter"><code>surface</code></em> is not an EGL surface, or is |
| not a bound pbuffer surface. |
| </p> |
| </div> |
| <div class="refsect1"> |
| <a id="seealso"></a> |
| <h2>See Also</h2> |
| <p> |
| <a class="citerefentry" href="eglBindTexImage.html"><span class="citerefentry"><span class="refentrytitle">eglBindTexImage</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 © 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. |
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