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102 lines
4.7 KiB
XML
102 lines
4.7 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="glInvalidateTexImage">
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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>glInvalidateTexImage</refentrytitle>
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<manvolnum>3G</manvolnum>
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</refmeta>
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<refnamediv>
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<refname>glInvalidateTexImage</refname>
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<refpurpose>invalidate the entirety a texture image</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>glInvalidateTexImage</function></funcdef>
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<paramdef>GLuint <parameter>texture</parameter></paramdef>
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<paramdef>GLint <parameter>level</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>texture</parameter></term>
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<listitem>
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<para>
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The name of a texture object to invalidate.
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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>level</parameter></term>
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<listitem>
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<para>
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The level of detail of the texture object to invalidate.
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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>glInvalidateTexSubImage</function> invalidates all of
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a texture image. <parameter>texture</parameter> and <parameter>level</parameter> indicated
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which texture image is being invalidated. After this command, data in the texture image has undefined
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values.
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</para>
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<para>
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<parameter>level</parameter> must be greater than or equal to zero and be
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less than the base 2 logarithm of the maximum texture width, height, or depth.
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</para>
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<para>
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For textures of targets <constant>GL_TEXTURE_RECTANGLE</constant>, <constant>GL_TEXTURE_BUFFER</constant>, <constant>GL_TEXTURE_2D_MULTISAMPLE</constant>, or
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<constant>GL_TEXTURE_2D_MULTISAMPLE_ARRAY</constant>, level must be zero.
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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>level</parameter> is
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less than zero or if it is greater or equal to the base 2 logarithm of the maximum texture width, height, or depth.
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</para>
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<para>
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<constant>GL_INVALID_VALUE</constant> is generated if the target of <parameter>texture</parameter>
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is any of <constant>GL_TEXTURE_RECTANGLE</constant>, <constant>GL_TEXTURE_BUFFER</constant>, <constant>GL_TEXTURE_2D_MULTISAMPLE</constant>, or
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<constant>GL_TEXTURE_2D_MULTISAMPLE_ARRAY</constant> and <parameter>level</parameter> is not zero.
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</para>
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<para>
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<constant>GL_INVALID_VALUE</constant> is generated if <parameter>texture</parameter> is not the
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name of an existing texture 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_MAX_TEXTURE_SIZE</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>glInvalidateTexSubImage</refentrytitle></citerefentry>,,
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<citerefentry><refentrytitle>glInvalidateBufferSubData</refentrytitle></citerefentry>,
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<citerefentry><refentrytitle>glInvalidateBufferData</refentrytitle></citerefentry>,
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<citerefentry><refentrytitle>glInvalidateFramebuffer</refentrytitle></citerefentry>,
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<citerefentry><refentrytitle>glInvalidateSubFramebuffer</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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