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Large code-drop from Khronos upstream.
132 lines
6.2 KiB
XML
132 lines
6.2 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="glBindSamplers">
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<refentryinfo>
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<copyright>
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<year>2013</year>
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<holder>Khronos Group</holder>
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</copyright>
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</refentryinfo>
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<refmeta>
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<refentrytitle>glBindSamplers</refentrytitle>
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<manvolnum>3G</manvolnum>
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</refmeta>
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<refnamediv>
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<refname>glBindSamplers</refname>
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<refpurpose>bind one or more named sampler objects to a sequence of consecutive sampler units</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>glBindSamplers</function></funcdef>
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<paramdef>GLuint <parameter>first</parameter></paramdef>
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<paramdef>GLsizei <parameter>count</parameter></paramdef>
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<paramdef>const GLuint *<parameter>samplers</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>first</parameter></term>
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<listitem>
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<para>
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Specifies the first sampler unit to which a sampler object is to be bound.
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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>count</parameter></term>
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<listitem>
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<para>
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Specifies the number of samplers to bind.
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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>samplers</parameter></term>
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<listitem>
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<para>
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Specifies the address of an array of names of existing sampler objects.
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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>glBindSamplers</function> binds samplers from an array of existing sampler objects to a specified
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number of consecutive sampler units. <parameter>count</parameter> specifies the number of sampler
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objects whose names are stored in the array <parameter>samplers</parameter>. That number
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of sampler names is read from the array and bound to the <parameter>count</parameter> consecutive
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sampler units starting from <parameter>first</parameter>.
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</para>
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<para>
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If the name zero appears in the <parameter>samplers</parameter> array, any existing binding
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to the sampler unit is reset. Any non-zero entry in <parameter>samplers</parameter> must be the
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name of an existing sampler object. When a non-zero entry in <parameter>samplers</parameter> is
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present, that sampler object is bound to the corresponding sampler unit.
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If <parameter>samplers</parameter> is <constant>NULL</constant> then it is as
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if an appropriately sized array containing only zeros had been specified.
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</para>
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<para>
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<function>glBindSamplers</function> is equivalent to the following pseudo code:
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</para>
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<programlisting><![CDATA[ for (i = 0; i < count; i++) {
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if (samplers == NULL) {
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glBindSampler(first + i, 0);
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} else {
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glBindSampler(first + i, samplers[i]);
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}
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}]]></programlisting>
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<para>
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Each entry in <parameter>samplers</parameter> will be checked individually and if found
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to be invalid, the state for that sampler unit will not be changed and an error will be
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generated. However, the state for other sampler units referenced by the command will still
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be updated.
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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>glBindSamplers</function> is available only if the GL version is 4.4 or higher.
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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>first</parameter> + <parameter>count</parameter> is greater
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than the number of sampler units supported by the implementation.
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</para>
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<para>
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<constant>GL_INVALID_OPERATION</constant> is generated if any value in <parameter>samplers</parameter> is
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not zero or the name of an existing sampler object.
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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>glGet</refentrytitle></citerefentry> with argument <constant>GL_SAMPLER_BINDING</constant>
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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>glGenSamplers</refentrytitle></citerefentry>,
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<citerefentry><refentrytitle>glBindSampler</refentrytitle></citerefentry>,
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<citerefentry><refentrytitle>glDeleteSamplers</refentrytitle></citerefentry>,
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<citerefentry><refentrytitle>glGet</refentrytitle></citerefentry>,
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<citerefentry><refentrytitle>glSamplerParameter</refentrytitle></citerefentry>,
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<citerefentry><refentrytitle>glGetSamplerParameter</refentrytitle></citerefentry>,
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<citerefentry><refentrytitle>glGenTextures</refentrytitle></citerefentry>,
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<citerefentry><refentrytitle>glBindTexture</refentrytitle></citerefentry>,
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<citerefentry><refentrytitle>glDeleteTextures</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> 2013 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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