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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=
"glProgramParameter"></a><div class=
"titlepage"></div><div class=
"refnamediv"><h2>Name
</h2><p>glProgramParameter — specify a parameter for a program object
</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">glProgramParameteri
</b>(
</code></td><td>GLuint
</td><td><var class=
"pdparam">program
</var>,
</td></tr><tr><td> </td><td>GLenum
</td><td><var class=
"pdparam">pname
</var>,
</td></tr><tr><td> </td><td>GLint
</td><td><var class=
"pdparam">value
</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>
5 Specifies the name of a program object whose parameter to modify.
6 </p></dd><dt><span class=
"term"><em class=
"parameter"><code>pname
</code></em></span></dt><dd><p>
7 Specifies the name of the parameter to modify.
8 </p></dd><dt><span class=
"term"><em class=
"parameter"><code>value
</code></em></span></dt><dd><p>
9 Specifies the new value of the parameter specified by
<em class=
"parameter"><code>pname
</code></em> for
<em class=
"parameter"><code>program
</code></em>.
10 </p></dd></dl></div></div><div class=
"refsect1" lang=
"en" xml:
lang=
"en"><a id=
"description"></a><h2>Description
</h2><p>
11 <code class=
"function">glProgramParameter
</code> specifies a new value for the parameter nameed by
12 <em class=
"parameter"><code>pname
</code></em> for the program object
<em class=
"parameter"><code>program
</code></em>.
14 If
<em class=
"parameter"><code>pname
</code></em> is
<code class=
"constant">GL_PROGRAM_BINARY_RETRIEVABLE_HINT
</code>,
15 <em class=
"parameter"><code>value
</code></em> should be
<code class=
"constant">GL_FALSE
</code> or
<code class=
"constant">GL_TRUE
</code>
16 to indicate to the implementation the intention of the application to retrieve the program's
17 binary representation with
<a href=
"glGetProgramBinary.xml"><span class=
"citerefentry"><span class=
"refentrytitle">glGetProgramBinary
</span></span></a>.
18 The implementation may use this information to store information that may be useful for a future
19 query of the program's binary. It is recommended to set
<code class=
"constant">GL_PROGRAM_BINARY_RETRIEVABLE_HINT
</code>
20 for the program to
<code class=
"constant">GL_TRUE
</code> before calling
21 <a href=
"glLinkProgram.xml"><span class=
"citerefentry"><span class=
"refentrytitle">glLinkProgram
</span></span></a>, and
22 using the program at run-time if the binary is to be retrieved later.
24 If
<em class=
"parameter"><code>pname
</code></em> is
<code class=
"constant">GL_PROGRAM_SEPARABLE
</code>,
<em class=
"parameter"><code>value
</code></em>
25 must be
<code class=
"constant">GL_TRUE
</code> or
<code class=
"constant">GL_FALSE
</code> and indicates whether
26 <em class=
"parameter"><code>program
</code></em> can be bound to individual pipeline stages via
27 <a href=
"glUseProgramStages.xml"><span class=
"citerefentry"><span class=
"refentrytitle">glUseProgramStages
</span></span></a>. A program's
28 <code class=
"constant">GL_PROGRAM_SEPARABLE
</code> parameter must be set to
<code class=
"constant">GL_TRUE
</code>
29 <span class=
"emphasis"><em>before
</em></span> <a href=
"glLinkProgram.xml"><span class=
"citerefentry"><span class=
"refentrytitle">glLinkProgram
</span></span></a>
30 is called in order for it to be usable with a program pipeline object. The initial state of
31 <code class=
"constant">GL_PROGRAM_SEPARABLE
</code> is
<code class=
"constant">GL_FALSE
</code>.
32 </p></div><div class=
"refsect1" lang=
"en" xml:
lang=
"en"><a id=
"errors"></a><h2>Errors
</h2><p>
33 <code class=
"constant">GL_INVALID_OPERATION
</code> is generated if
<em class=
"parameter"><code>program
</code></em> is not the
34 name of an existing program object.
36 <code class=
"constant">GL_INVALID_ENUM
</code> is generated if
<em class=
"parameter"><code>pname
</code></em> is not one
37 of the accepted values.
39 <code class=
"constant">GL_INVALID_VALUE
</code> is generated if
<em class=
"parameter"><code>value
</code></em> is not a valid
40 value for the parameter named by
<em class=
"parameter"><code>pname
</code></em>.
41 </p></div><div class=
"refsect1" lang=
"en" xml:
lang=
"en"><a id=
"associatedgets"></a><h2>Associated Gets
</h2><p>
42 <a href=
"glGetProgram.xml"><span class=
"citerefentry"><span class=
"refentrytitle">glGetProgram
</span></span></a>.
43 </p></div><div class=
"refsect1" lang=
"en" xml:
lang=
"en"><a id=
"seealso"></a><h2>See Also
</h2><p>
44 <a href=
"glGetProgram.xml"><span class=
"citerefentry"><span class=
"refentrytitle">glGetProgram
</span></span></a>,
45 <a href=
"glGetProgramBinary.xml"><span class=
"citerefentry"><span class=
"refentrytitle">glGetProgramBinary
</span></span></a>,
46 <a href=
"glProgramBinary.xml"><span class=
"citerefentry"><span class=
"refentrytitle">glProgramBinary
</span></span></a>
47 </p></div><div class=
"refsect1" lang=
"en" xml:
lang=
"en"><a id=
"Copyright"></a><h2>Copyright
</h2><p>
48 Copyright
<span class=
"trademark"></span>©
2010 Khronos Group.
49 This material may be distributed subject to the terms and conditions set forth in
50 the Open Publication License, v
1.0,
8 June
1999.
51 <a href=
"http://opencontent.org/openpub/" target=
"_top">http://opencontent.org/openpub/
</a>.
52 </p></div></div></body></html>
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