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106 lines
4.8 KiB
XML
106 lines
4.8 KiB
XML
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<?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="glGenQueries">
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<refmeta>
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<refmetainfo>
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<copyright>
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<year>2005</year>
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<holder>Sams Publishing</holder>
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</copyright>
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</refmetainfo>
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<refentrytitle>glGenQueries</refentrytitle>
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<manvolnum>3G</manvolnum>
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</refmeta>
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<refnamediv>
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<refname>glGenQueries</refname>
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<refpurpose>generate query object names</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>glGenQueries</function></funcdef>
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<paramdef>GLsizei <parameter>n</parameter></paramdef>
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<paramdef>GLuint * <parameter>ids</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>n</parameter></term>
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<listitem>
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<para>
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Specifies the number of query object names to be generated.
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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>ids</parameter></term>
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<listitem>
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<para>
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Specifies an array in which the generated query object names are stored.
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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>glGenQueries</function> returns <parameter>n</parameter> query object names in <parameter>ids</parameter>.
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There is no guarantee that the names form a contiguous set of integers;
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however, it is guaranteed that none of the returned names was in use
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immediately before the call to <function>glGenQueries</function>.
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</para>
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<para>
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Query object names returned by a call to <function>glGenQueries</function> are not returned by
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subsequent calls, unless they are first deleted with
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<citerefentry><refentrytitle>glDeleteQueries</refentrytitle></citerefentry>.
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</para>
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<para>
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No query objects are associated with the returned query object names until they are first used by calling
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<citerefentry><refentrytitle>glBeginQuery</refentrytitle></citerefentry>.
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</para>
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</refsect1>
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<refsect1 id="notes"><title>Notes</title>
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<para>
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<function>glGenQueries</function> is available only if the GL version is 1.5 or greater.
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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_VALUE</constant> is generated if <parameter>n</parameter> is negative.
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</para>
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<para>
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<constant>GL_INVALID_OPERATION</constant> is generated if <function>glGenQueries</function> is executed
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between the execution of <citerefentry><refentrytitle>glBeginQuery</refentrytitle></citerefentry> and the corresponding
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execution of <citerefentry><refentrytitle>glEndQuery</refentrytitle></citerefentry>.
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</para>
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<para>
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<constant>GL_INVALID_OPERATION</constant> is generated if <function>glGenQueries</function> is executed
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between the execution of <citerefentry><refentrytitle>glBegin</refentrytitle></citerefentry> and the corresponding
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execution of <citerefentry><refentrytitle>glEnd</refentrytitle></citerefentry>.
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</para>
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</refsect1>
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<refsect1 id="associatedgets"><title>Associated Gets</title>
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<para>
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<citerefentry><refentrytitle>glIsQuery</refentrytitle></citerefentry>
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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>glBeginQuery</refentrytitle></citerefentry>,
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<citerefentry><refentrytitle>glDeleteQueries</refentrytitle></citerefentry>,
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<citerefentry><refentrytitle>glEndQuery</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> 2005 Addison-Wesley.
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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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