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112 lines
5 KiB
XML
112 lines
5 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="glRenderbufferStorage">
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<refmeta>
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<refentrytitle>glRenderbufferStorage</refentrytitle>
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<manvolnum>3G</manvolnum>
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</refmeta>
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<refnamediv>
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<refname>glRenderbufferStorage</refname>
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<refpurpose>create and initialize a renderbuffer object's data store</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>glRenderbufferStorage</function></funcdef>
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<paramdef>GLenum <parameter>target</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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</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>Specifies the renderbuffer target. The symbolic constant must be
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<constant>GL_RENDERBUFFER</constant>.</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>Specifies the color-renderable, depth-renderable, or
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stencil-renderable format of the renderbuffer. Must be one of the
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following symbolic constants:
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<constant>GL_RGBA4</constant>,
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<constant>GL_RGB565</constant>,
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<constant>GL_RGB5_A1</constant>,
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<constant>GL_DEPTH_COMPONENT16</constant>, or
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<constant>GL_STENCIL_INDEX8</constant>.</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>Specifies the width of the renderbuffer in pixels.</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>Specifies the height of the renderbuffer in pixels.</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>glRenderbufferStorage</function> establishes the data
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storage, format, and dimensions of a renderbuffer object's image. Any
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existing data store for the renderbuffer is deleted and the contents
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of the new data store are undefined.</para>
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<para>An implementation may vary its allocation of internal component
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resolution based on any <function>glRenderbufferStorage</function> parameter
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(except <parameter>target</parameter>), but the allocation and chosen
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internal format must not be a function of any other state and cannot be
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changed once they are established. The actual resolution in bits of each
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component of the allocated image can be queried with
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<citerefentry><refentrytitle>glGetRenderbufferParameteriv</refentrytitle></citerefentry>.</para>
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</refsect1>
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<refsect1 id="errors"><title>Errors</title>
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<para><constant>GL_INVALID_ENUM</constant> is generated if
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<parameter>target</parameter> is not <constant>GL_RENDERBUFFER</constant>.</para>
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<para><constant>GL_INVALID_ENUM</constant> is generated if
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<parameter>internalformat</parameter> is not an accepted format.</para>
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<para><constant>GL_INVALID_VALUE</constant> is generated if
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<parameter>width</parameter> or <parameter>height</parameter> is less than zero
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or greater than <constant>GL_MAX_RENDERBUFFER_SIZE</constant>.</para>
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<para><constant>GL_OUT_OF_MEMORY</constant> is generated if the implementation is
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unable to create a data store with the requested
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<parameter>width</parameter> and <parameter>height</parameter>.</para>
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<para><constant>GL_INVALID_OPERATION</constant> is generated if the reserved
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renderbuffer object name 0 is bound.</para>
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</refsect1>
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<refsect1 id="associatedgets"><title>Associated Gets</title>
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<para><citerefentry><refentrytitle>glGetRenderbufferParameteriv</refentrytitle></citerefentry></para>
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</refsect1>
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<refsect1 id="seealso"><title>See Also</title>
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<para><citerefentry><refentrytitle>glBindRenderbuffer</refentrytitle></citerefentry>,
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<citerefentry><refentrytitle>glDeleteRenderbuffers</refentrytitle></citerefentry>,
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<citerefentry><refentrytitle>glFramebufferRenderbuffer</refentrytitle></citerefentry>,
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<citerefentry><refentrytitle>glGenRenderbuffers</refentrytitle></citerefentry>,
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<citerefentry><refentrytitle>glGetRenderbufferParameteriv</refentrytitle></citerefentry>,
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<citerefentry><refentrytitle>glIsRenderbuffer</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> 2008 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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