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<?xml-stylesheet type="text/xsl" href="mathml.xsl"?><html xmlns="http://www.w3.org/1999/xhtml" xmlns:pref="http://www.w3.org/2002/Math/preference" pref:renderer="mathplayer-dl"><head><meta http-equiv="Content-Type" content="text/html; charset=UTF-8" /><link rel="stylesheet" type="text/css" href="opengl-man.css" /><title>glProgramBinary - OpenGL 4 Reference Pages</title><meta name="generator" content="DocBook XSL Stylesheets V1.69.1" /></head><body><div class="refentry" lang="en" xml:lang="en"><a id="glProgramBinary"></a><div class="titlepage"></div><div class="refnamediv"><h2>Name</h2><p>glProgramBinary — load a program object with a program binary</p></div><div class="refsynopsisdiv"><h2>C Specification</h2><div class="funcsynopsis"><table border="0" summary="Function synopsis" cellspacing="0" cellpadding="0"><tr><td><code class="funcdef">void <b class="fsfunc">glProgramBinary</b>(</code></td><td>GLuint  </td><td><var class="pdparam">program</var>, </td></tr><tr><td> </td><td>GLenum  </td><td><var class="pdparam">binaryFormat</var>, </td></tr><tr><td> </td><td>const void * </td><td><var class="pdparam">binary</var>, </td></tr><tr><td> </td><td>GLsizei  </td><td><var class="pdparam">length</var><code>)</code>;</td></tr></table></div></div><div class="refsect1" lang="en" xml:lang="en"><a id="parameters"></a><h2>Parameters</h2><div class="variablelist"><dl><dt><span class="term"><em class="parameter"><code>program</code></em></span></dt><dd><p>
                Specifies the name of a program object into which to load a program binary.
            </p></dd><dt><span class="term"><em class="parameter"><code>binaryFormat</code></em></span></dt><dd><p>
                Specifies the format of the binary data in binary.
            </p></dd><dt><span class="term"><em class="parameter"><code>binary</code></em></span></dt><dd><p>
                Specifies the address an array containing the binary to be loaded into <em class="parameter"><code>program</code></em>.
            </p></dd><dt><span class="term"><em class="parameter"><code>length</code></em></span></dt><dd><p>
                Specifies the number of bytes contained in <em class="parameter"><code>binary</code></em>.
            </p></dd></dl></div></div><div class="refsect1" lang="en" xml:lang="en"><a id="description"></a><h2>Description</h2><p>
            <code class="function">glProgramBinary</code> loads a program object with a program binary previously
            returned from <a href="glGetProgramBinary.xml"><span class="citerefentry"><span class="refentrytitle">glGetProgramBinary</span></span></a>.
            <em class="parameter"><code>binaryFormat</code></em> and <em class="parameter"><code>binary</code></em> must be those returned
            by a previous call to <a href="glGetProgramBinary.xml"><span class="citerefentry"><span class="refentrytitle">glGetProgramBinary</span></span></a>,
            and <em class="parameter"><code>length</code></em> must be the length returned by
            <a href="glGetProgramBinary.xml"><span class="citerefentry"><span class="refentrytitle">glGetProgramBinary</span></span></a>, or by
            <a href="glGetProgram.xml"><span class="citerefentry"><span class="refentrytitle">glGetProgram</span></span></a> when called with
            <em class="parameter"><code>pname</code></em> set to <code class="constant">GL_PROGRAM_BINARY_LENGTH</code>.
            If these conditions are not met, loading the program binary will fail and <em class="parameter"><code>program</code></em>'s
            <code class="constant">GL_LINK_STATUS</code> will be set to <code class="constant">GL_FALSE</code>.
        </p><p>
            A program object's program binary is replaced by calls to
            <a href="glLinkProgram.xml"><span class="citerefentry"><span class="refentrytitle">glLinkProgram</span></span></a> or
            <code class="function">glProgramBinary</code>. When linking success or failure is concerned, <code class="function">glProgramBinary</code>
            can be considered to perform an implicit linking operation.
            <a href="glLinkProgram.xml"><span class="citerefentry"><span class="refentrytitle">glLinkProgram</span></span></a> and <code class="function">glProgramBinary</code>
            both set the program object's <code class="constant">GL_LINK_STATUS</code> to <code class="constant">GL_TRUE</code>
            or <code class="constant">GL_FALSE</code>.
        </p><p>
            A successful call to <code class="function">glProgramBinary</code> will reset all uniform variables to their
            initial values. The initial value is either the value of the variable's initializer as specified in the
            original shader source, or zero if no initializer was present. Additionally, all vertex shader input
            and fragment shader output assignments that were in effect when the program was linked before saving are
            restored with <code class="function">glProgramBinary</code> is called.
        </p></div><div class="refsect1" lang="en" xml:lang="en"><a id="errors"></a><h2>Errors</h2><p>
            <code class="constant">GL_INVALID_OPERATION</code> is generated if <em class="parameter"><code>program</code></em> is not the
            name of an existing program object.
        </p><p>
            <code class="constant">GL_INVALID_ENUM</code> is generated if <em class="parameter"><code>binaryFormat</code></em> is not a
            value recognized by the implementation.
        </p></div><div class="refsect1" lang="en" xml:lang="en"><a id="notes"></a><h2>Notes</h2><p>
            A program binary may fail to load if the implementation determines that there has been a
            change in hardware or software configuration from when the program binary was produced such
            as having been compiled with an incompatible or outdated version of the compiler.
        </p></div><div class="refsect1" lang="en" xml:lang="en"><a id="associatedgets"></a><h2>Associated Gets</h2><p>
            <a href="glGetProgram.xml"><span class="citerefentry"><span class="refentrytitle">glGetProgram</span></span></a> with argument <code class="constant">GL_PROGRAM_BINARY_LENGTH</code>
        </p><p>
            <a href="glGet.xml"><span class="citerefentry"><span class="refentrytitle">glGet</span></span></a> with argument <code class="constant">GL_NUM_PROGRAM_BINARY_FORMATS</code>
        </p><p>
            <a href="glGet.xml"><span class="citerefentry"><span class="refentrytitle">glGet</span></span></a> with argument <code class="constant">GL_PROGRAM_BINARY_FORMATS</code>
        </p></div><div class="refsect1" lang="en" xml:lang="en"><a id="seealso"></a><h2>See Also</h2><p>
            <a href="glGetProgram.xml"><span class="citerefentry"><span class="refentrytitle">glGetProgram</span></span></a>,
            <a href="glGetProgramBinary.xml"><span class="citerefentry"><span class="refentrytitle">glGetProgramBinary</span></span></a>
        </p></div><div class="refsect1" lang="en" xml:lang="en"><a id="Copyright"></a><h2>Copyright</h2><p>
            Copyright <span class="trademark"></span>© 2010 Khronos Group. 
            This material may be distributed subject to the terms and conditions set forth in 
            the Open Publication License, v 1.0, 8 June 1999.
            <a href="http://opencontent.org/openpub/" target="_top">http://opencontent.org/openpub/</a>.
        </p></div></div></body></html>
