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4 | <?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>glCreateProgram</title><meta name="generator" content="DocBook XSL Stylesheets V1.75.2" /></head><body><div class="refentry" title="glCreateProgram"><a id="glCreateProgram"></a><div class="titlepage"></div><div class="refnamediv"><h2>Name</h2><p>glCreateProgram — Creates a program object</p></div><div class="refsynopsisdiv" title="C Specification"><h2>C Specification</h2><div class="funcsynopsis"><table border="0" summary="Function synopsis" cellspacing="0" cellpadding="0" class="funcprototype-table"><tr><td><code class="funcdef">GLuint <b class="fsfunc">glCreateProgram</b>(</code></td><td><var class="pdparam">void</var><code>)</code>;</td></tr></table><div class="funcprototype-spacer"> </div></div></div><div class="refsect1" title="Description"><a id="description"></a><h2>Description</h2><p><code class="function">glCreateProgram</code> creates an empty | |
5 | program object and returns a non-zero value by which it can be | |
6 | referenced. A program object is an object to which shader | |
7 | objects can be attached. This provides a mechanism to specify | |
8 | the shader objects that will be linked to create a program. It | |
9 | also provides a means for checking the compatibility of the | |
10 | shaders that will be used to create a program (for instance, | |
11 | checking the compatibility between a vertex shader and a | |
12 | fragment shader). When no longer needed as part of a program | |
13 | object, shader objects can be detached.</p><p>One or more executables are created in a program object by | |
14 | successfully attaching shader objects to it with | |
15 | <a class="citerefentry" href="glAttachShader.xml"><span class="citerefentry"><span class="refentrytitle">glAttachShader</span></span></a>, | |
16 | successfully compiling the shader objects with | |
17 | <a class="citerefentry" href="glCompileShader.xml"><span class="citerefentry"><span class="refentrytitle">glCompileShader</span></span></a>, | |
18 | and successfully linking the program object with | |
19 | <a class="citerefentry" href="glLinkProgram.xml"><span class="citerefentry"><span class="refentrytitle">glLinkProgram</span></span></a>. | |
20 | These executables are made part of current state when | |
21 | <a class="citerefentry" href="glUseProgram.xml"><span class="citerefentry"><span class="refentrytitle">glUseProgram</span></span></a> | |
22 | is called. Program objects can be deleted by calling | |
23 | <a class="citerefentry" href="glDeleteProgram.xml"><span class="citerefentry"><span class="refentrytitle">glDeleteProgram</span></span></a>. | |
24 | The memory associated with the program object will be deleted | |
25 | when it is no longer part of current rendering state for any | |
26 | context.</p></div><div class="refsect1" title="Notes"><a id="notes"></a><h2>Notes</h2><p>Like buffer and texture objects, the name space for | |
27 | program objects may be shared across a set of contexts, as long | |
28 | as the server sides of the contexts share the same address | |
29 | space. If the name space is shared across contexts, any attached | |
30 | objects and the data associated with those attached objects are | |
31 | shared as well.</p><p>Applications are responsible for providing the | |
32 | synchronization across API calls when objects are accessed from | |
33 | different execution threads.</p></div><div class="refsect1" title="Errors"><a id="errors"></a><h2>Errors</h2><p>This function returns 0 if an error occurs creating the program object.</p></div><div class="refsect1" title="Associated Gets"><a id="associatedgets"></a><h2>Associated Gets</h2><p><a class="citerefentry" href="glGet.xml"><span class="citerefentry"><span class="refentrytitle">glGet</span></span></a> | |
34 | with the argument <code class="constant">GL_CURRENT_PROGRAM</code></p><p><a class="citerefentry" href="glGetActiveAttrib.xml"><span class="citerefentry"><span class="refentrytitle">glGetActiveAttrib</span></span></a> | |
35 | with a valid program object and the index of an active attribute | |
36 | variable</p><p><a class="citerefentry" href="glGetActiveUniform.xml"><span class="citerefentry"><span class="refentrytitle">glGetActiveUniform</span></span></a> | |
37 | with a valid program object and the index of an active uniform | |
38 | variable</p><p><a class="citerefentry" href="glGetAttachedShaders.xml"><span class="citerefentry"><span class="refentrytitle">glGetAttachedShaders</span></span></a> | |
39 | with a valid program object</p><p><a class="citerefentry" href="glGetAttribLocation.xml"><span class="citerefentry"><span class="refentrytitle">glGetAttribLocation</span></span></a> | |
40 | with a valid program object and the name of an attribute | |
41 | variable</p><p><a class="citerefentry" href="glGetProgram.xml"><span class="citerefentry"><span class="refentrytitle">glGetProgram</span></span></a> | |
42 | with a valid program object and the parameter to be queried</p><p><a class="citerefentry" href="glGetProgramInfoLog.xml"><span class="citerefentry"><span class="refentrytitle">glGetProgramInfoLog</span></span></a> | |
43 | with a valid program object</p><p><a class="citerefentry" href="glGetUniform.xml"><span class="citerefentry"><span class="refentrytitle">glGetUniform</span></span></a> | |
44 | with a valid program object and the location of a uniform | |
45 | variable</p><p><a class="citerefentry" href="glGetUniformLocation.xml"><span class="citerefentry"><span class="refentrytitle">glGetUniformLocation</span></span></a> | |
46 | with a valid program object and the name of a uniform | |
47 | variable</p><p><a class="citerefentry" href="glIsProgram.xml"><span class="citerefentry"><span class="refentrytitle">glIsProgram</span></span></a></p></div><div class="refsect1" title="See Also"><a id="seealso"></a><h2>See Also</h2><p><a class="citerefentry" href="glAttachShader.xml"><span class="citerefentry"><span class="refentrytitle">glAttachShader</span></span></a>, | |
48 | <a class="citerefentry" href="glBindAttribLocation.xml"><span class="citerefentry"><span class="refentrytitle">glBindAttribLocation</span></span></a>, | |
49 | <a class="citerefentry" href="glCreateShader.xml"><span class="citerefentry"><span class="refentrytitle">glCreateShader</span></span></a>, | |
50 | <a class="citerefentry" href="glDeleteProgram.xml"><span class="citerefentry"><span class="refentrytitle">glDeleteProgram</span></span></a>, | |
51 | <a class="citerefentry" href="glDetachShader.xml"><span class="citerefentry"><span class="refentrytitle">glDetachShader</span></span></a>, | |
52 | <a class="citerefentry" href="glLinkProgram.xml"><span class="citerefentry"><span class="refentrytitle">glLinkProgram</span></span></a>, | |
53 | <a class="citerefentry" href="glUniform.xml"><span class="citerefentry"><span class="refentrytitle">glUniform</span></span></a>, | |
54 | <a class="citerefentry" href="glUseProgram.xml"><span class="citerefentry"><span class="refentrytitle">glUseProgram</span></span></a>, | |
55 | <a class="citerefentry" href="glValidateProgram.xml"><span class="citerefentry"><span class="refentrytitle">glValidateProgram</span></span></a></p></div><div class="refsect1" title="Copyright"><a id="Copyright"></a><h2>Copyright</h2><p> | |
56 | Copyright <span class="trademark"></span>© 2003-2005 3Dlabs Inc. Ltd. | |
57 | This material may be distributed subject to the terms and conditions set forth in | |
58 | the Open Publication License, v 1.0, 8 June 1999. | |
59 | <a class="ulink" href="http://opencontent.org/openpub/" target="_top">http://opencontent.org/openpub/</a>. | |
60 | </p></div></div></body></html> |