93 lines
4.3 KiB
XML
93 lines
4.3 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="glGetVertexAttribPointerv">
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<refmeta>
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<refentrytitle>glGetVertexAttribPointerv</refentrytitle>
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<manvolnum>3G</manvolnum>
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</refmeta>
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<refnamediv>
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<refname>glGetVertexAttribPointerv</refname>
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<refpurpose>return the address of the specified generic vertex attribute pointer</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>glGetVertexAttribPointerv</function></funcdef>
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<paramdef>GLuint <parameter>index</parameter></paramdef>
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<paramdef>GLenum <parameter>pname</parameter></paramdef>
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<paramdef>GLvoid **<parameter>pointer</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>index</parameter></term>
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<listitem>
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<para>Specifies the generic vertex attribute
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parameter to be returned.</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>Specifies the symbolic name of the generic
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vertex attribute parameter to be returned. Must be
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<constant>GL_VERTEX_ATTRIB_ARRAY_POINTER</constant>.</para>
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</listitem>
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</varlistentry>
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<varlistentry>
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<term><parameter>pointer</parameter></term>
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<listitem>
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<para>Returns the pointer value.</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><function>glGetVertexAttribPointerv</function> returns
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pointer information. <parameter>index</parameter> is the generic
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vertex attribute to be queried, <parameter>pname</parameter> is
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a symbolic constant indicating the pointer to be returned, and
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<parameter>params</parameter> is a pointer to a location in
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which to place the returned data.</para>
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<para>The <parameter>pointer</parameter> returned is a byte offset into the data store of the buffer object
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that was bound to the <constant>GL_ARRAY_BUFFER</constant> target
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(see <citerefentry><refentrytitle>glBindBuffer</refentrytitle></citerefentry>) when the desired pointer was previously specified.
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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>The state returned is retrieved from the currently bound vertex array object.</para>
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<para>The initial value for each pointer is 0.</para>
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</refsect1>
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<refsect1 id="errors"><title>Errors</title>
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<para><constant>GL_INVALID_OPERATION</constant> is generated if no vertex array object is currently bound.</para>
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<para><constant>GL_INVALID_VALUE</constant>
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is generated if <parameter>index</parameter>
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is greater than or equal to <constant>GL_MAX_VERTEX_ATTRIBS</constant>.</para>
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<para><constant>GL_INVALID_ENUM</constant>
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is generated if <parameter>pname</parameter>
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is not an accepted value.</para>
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</refsect1>
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<refsect1 id="associatedgets"><title>Associated Gets</title>
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<para><citerefentry><refentrytitle>glGet</refentrytitle></citerefentry>
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with argument <constant>GL_MAX_VERTEX_ATTRIBS</constant></para>
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</refsect1>
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<refsect1 id="seealso"><title>See Also</title>
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<para><citerefentry><refentrytitle>glGetVertexAttrib</refentrytitle></citerefentry>,
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<citerefentry><refentrytitle>glVertexAttribPointer</refentrytitle></citerefentry></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> 2003-2005 3Dlabs Inc. Ltd.
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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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