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128 lines
6.1 KiB
XML
128 lines
6.1 KiB
XML
<?xml version="1.0" encoding="UTF-8"?>
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<!DOCTYPE book PUBLIC "-//OASIS//DTD DocBook MathML Module V1.1b1//EN"
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"http://www.oasis-open.org/docbook/xml/mathml/1.1CR1/dbmathml.dtd">
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<refentry id="glGetProgramPipeline">
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<refmeta>
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<refmetainfo>
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<copyright>
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<year>2010</year>
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<holder>Khronos Group</holder>
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</copyright>
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</refmetainfo>
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<refentrytitle>glGetProgramPipeline</refentrytitle>
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<manvolnum>3G</manvolnum>
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</refmeta>
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<refnamediv>
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<refname>glGetProgramPipeline</refname>
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<refpurpose>retrieve properties of a program pipeline object</refpurpose>
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</refnamediv>
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<refsynopsisdiv><title>C Specification</title>
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<funcsynopsis>
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<funcprototype>
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<funcdef>void <function>glGetProgramPipelineiv</function></funcdef>
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<paramdef>GLuint <parameter>pipeline</parameter></paramdef>
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<paramdef>GLenum <parameter>pname</parameter></paramdef>
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<paramdef>GLint *<parameter>params</parameter></paramdef>
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</funcprototype>
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</funcsynopsis>
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</refsynopsisdiv>
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<refsect1 id="parameters"><title>Parameters</title>
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<variablelist>
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<varlistentry>
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<term><parameter>pipeline</parameter></term>
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<listitem>
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<para>
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Specifies the name of a program pipeline object whose parameter retrieve.
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</para>
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</listitem>
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</varlistentry>
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<varlistentry>
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<term><parameter>pname</parameter></term>
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<listitem>
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<para>
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Specifies the name of the parameter to retrieve.
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</para>
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</listitem>
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</varlistentry>
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<varlistentry>
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<term><parameter>params</parameter></term>
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<listitem>
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<para>
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Specifies the address of a variable into which will be written the value or values
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of <parameter>pname</parameter> for <parameter>pipeline</parameter>.
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</para>
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</listitem>
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</varlistentry>
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</variablelist>
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</refsect1>
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<refsect1 id="description"><title>Description</title>
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<para>
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<function>glGetProgramPipelineiv</function> retrieves the value of a property of the program
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pipeline object <parameter>pipeline</parameter>. <parameter>pname</parameter> specifies the
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name of the parameter whose value to retrieve. The value of the parameter is written to
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the variable whose address is given by <parameter>params</parameter>.
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</para>
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<para>
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If <parameter>pname</parameter> is <constant>GL_ACTIVE_PROGRAM</constant>, the name of the
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active program object of the program pipeline object is returned in <parameter>params</parameter>.
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</para>
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<para>
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If <parameter>pname</parameter> is <constant>GL_VERTEX_SHADER</constant>, the name of the
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current program object for the vertex shader type of the program pipeline object is
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returned in <parameter>params</parameter>.
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</para>
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<para>
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If <parameter>pname</parameter> is <constant>GL_TESS_CONTROL_SHADER</constant>, the name of the
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current program object for the tessellation control shader type of the program pipeline object is
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returned in <parameter>params</parameter>.
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</para>
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<para>
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If <parameter>pname</parameter> is <constant>GL_TESS_EVALUATION_SHADER</constant>, the name of the
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current program object for the tessellation evaluation shader type of the program pipeline object is
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returned in <parameter>params</parameter>.
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</para>
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<para>
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If <parameter>pname</parameter> is <constant>GL_GEOMETRY_SHADER</constant>, the name of the
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current program object for the geometry shader type of the program pipeline object is
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returned in <parameter>params</parameter>.
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</para>
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<para>
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If <parameter>pname</parameter> is <constant>GL_FRAGMENT_SHADER</constant>, the name of the
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current program object for the fragment shader type of the program pipeline object is
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returned in <parameter>params</parameter>.
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</para>
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<para>
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If <parameter>pname</parameter> is <constant>GL_INFO_LOG_LENGTH</constant>, the length of the
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info log, including the null terminator, is returned in <parameter>params</parameter>. If there
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is no info log, zero is returned.
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</para>
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</refsect1>
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<refsect1 id="errors"><title>Errors</title>
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<para>
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<constant>GL_INVALID_OPERATION</constant> is generated if <parameter>pipeline</parameter> is not zero or
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a name previously returned from a call to <citerefentry><refentrytitle>glGenProgramPipelines</refentrytitle></citerefentry>
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or if such a name has been deleted by a call to
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<citerefentry><refentrytitle>glDeleteProgramPipelines</refentrytitle></citerefentry>.
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</para>
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<para>
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<constant>GL_INVALID_ENUM</constant> is generated if <parameter>pname</parameter> is not one
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of the accepted values.
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</para>
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</refsect1>
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<refsect1 id="seealso"><title>See Also</title>
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<para>
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<citerefentry><refentrytitle>glGetProgramPipelines</refentrytitle></citerefentry>,
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<citerefentry><refentrytitle>glBindProgramPipeline</refentrytitle></citerefentry>,
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<citerefentry><refentrytitle>glDeleteProgramPipelines</refentrytitle></citerefentry>
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</para>
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</refsect1>
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<refsect1 id="Copyright"><title>Copyright</title>
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<para>
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Copyright <trademark class="copyright"></trademark> 2010 Khronos Group.
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This material may be distributed subject to the terms and conditions set forth in
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the Open Publication License, v 1.0, 8 June 1999.
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<ulink url="http://opencontent.org/openpub/">http://opencontent.org/openpub/</ulink>.
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</para>
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</refsect1>
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</refentry>
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