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147 lines
7 KiB
XML
147 lines
7 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="glTexStorage2DMultisample">
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<refmeta>
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<refmetainfo>
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<copyright>
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<year>2012</year>
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<holder>Khronos Group</holder>
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</copyright>
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</refmetainfo>
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<refentrytitle>glTexStorage2DMultisample</refentrytitle>
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<manvolnum>3G</manvolnum>
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</refmeta>
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<refnamediv>
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<refname>glTexStorage2DMultisample</refname>
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<refpurpose>specify storage for a two-dimensional multisample texture</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>glTexStorage2DMultisample</function></funcdef>
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<paramdef>GLenum <parameter>target</parameter></paramdef>
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<paramdef>GLsizei <parameter>samples</parameter></paramdef>
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<paramdef>GLenum <parameter>internalformat</parameter></paramdef>
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<paramdef>GLsizei <parameter>width</parameter></paramdef>
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<paramdef>GLsizei <parameter>height</parameter></paramdef>
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<paramdef>GLboolean <parameter>fixedsamplelocations</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>target</parameter></term>
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<listitem>
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<para>
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Specify the target of the operation. <parameter>target</parameter> must be
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<constant>GL_TEXTURE_2D_MULTISAMPLE</constant> or <constant>GL_PROXY_TEXTURE_2D_MULTISAMPLE</constant>.
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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>samples</parameter></term>
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<listitem>
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<para>
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Specify the number of samples in the texture.
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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>internalformat</parameter></term>
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<listitem>
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<para>
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Specifies the sized internal format to be used to store texture image data.
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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>width</parameter></term>
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<listitem>
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<para>
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Specifies the width of the texture, in texels.
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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>height</parameter></term>
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<listitem>
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<para>
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Specifies the height of the texture, in texels.
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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>fixedsamplelocations</parameter></term>
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<listitem>
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<para>
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Specifies whether the image will use identical sample locations and the same number of samples for all texels in the image, and the sample locations will not
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depend on the internal format or size of the image.
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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>glTexStorage2DMultisample</function> specifies the storage requirements for
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a two-dimensional multisample texture. Once a texture is specified with this
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command, its format and dimensions become immutable unless it is a proxy
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texture. The contents of the image may still be modified, however, its storage requirements
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may not change. Such a texture is referred to as an <emphasis>immutable-format</emphasis>
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texture.
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</para>
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<para>
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<parameter>samples</parameter> specifies the number of samples to be used for the texture
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and must be greater than zero and less than or equal to the value of <constant>GL_MAX_SAMPLES</constant>.
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<parameter>internalformat</parameter> must be a color-renderable, depth-renderable, or stencil-renderable format.
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<parameter>width</parameter> and <parameter>height</parameter> specify the width and height,
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respectively, of the texture. If <parameter>fixedsamplelocations</parameter> is <constant>GL_TRUE</constant>,
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the image will use identical sample locations and the same number of samples for all texels in the image,
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and the sample locations will not depend on the internal format or size of the image.
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</para>
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<para>
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<xi:include xmlns:xi="http://www.w3.org/2001/XInclude" href="internalformattable.xml" />
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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_ENUM</constant> is generated if <parameter>internalformat</parameter> is not a
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valid color-renderable, depth-renderable or stencil-renderable format.
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</para>
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<para>
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<constant>GL_INVALID_ENUM</constant> is generated if <parameter>target</parameter> is not
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one of the accepted target enumerants.
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</para>
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<para>
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<constant>GL_INVALID_VALUE</constant> is generated if <parameter>width</parameter> or <parameter>height</parameter>
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are less than 1 or greater than the value of <constant>GL_MAX_TEXTURE_SIZE</constant>.
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</para>
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<para>
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<constant>GL_INVALID_VALUE</constant> is generated if <parameter>samples</parameter> is greater than the
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value of <constant>GL_MAX_SAMPLES</constant>.
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</para>
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<para>
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<constant>GL_INVALID_OPERATION</constant> is generated if the value of <constant>GL_TEXTURE_IMMUTABLE_FORMAT</constant>
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for the texture bound to <parameter>target</parameter> is not <constant>GL_FALSE</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>glTexImage2D</refentrytitle></citerefentry>,
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<citerefentry><refentrytitle>glTexImage2DMultisample</refentrytitle></citerefentry>,
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<citerefentry><refentrytitle>glTexStorage1D</refentrytitle></citerefentry>,
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<citerefentry><refentrytitle>glTexStorage3D</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> 2012 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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