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104 lines
5.8 KiB
XML
104 lines
5.8 KiB
XML
<!DOCTYPE refentry [ <!ENTITY % mathent SYSTEM "math.ent"> %mathent; ]>
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<!-- Converted by db4-upgrade version 1.1 -->
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<refentry xmlns="http://docbook.org/ns/docbook" version="5.0" xml:id="glGetRenderbufferParameter">
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<info>
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<copyright>
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<year>2010-2013</year>
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<holder>Khronos Group</holder>
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</copyright>
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</info>
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<refmeta>
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<refentrytitle>glGetRenderbufferParameteriv</refentrytitle>
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<manvolnum>3G</manvolnum>
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</refmeta>
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<refnamediv>
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<refname>glGetRenderbufferParameteriv</refname>
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<refpurpose>retrieve information about a bound renderbuffer object</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>glGetRenderbufferParameteriv</function></funcdef>
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<paramdef>GLenum <parameter>target</parameter></paramdef>
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<paramdef>GLenum <parameter>pname</parameter></paramdef>
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<paramdef>GLint *<parameter>params</parameter></paramdef>
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</funcprototype>
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</funcsynopsis>
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</refsynopsisdiv>
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<refsect1 xml: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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Specifies the target of the query operation. <parameter>target</parameter> must be <constant>GL_RENDERBUFFER</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>pname</parameter></term>
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<listitem>
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<para>
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Specifies the parameter whose value to retrieve from the renderbuffer bound to <parameter>target</parameter>.
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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>params</parameter></term>
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<listitem>
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<para>
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Specifies the address of an array to receive the value of the queried parameter.
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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 xml:id="description"><title>Description</title>
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<para>
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<function>glGetRenderbufferParameteriv</function> retrieves information about a bound renderbuffer object. <parameter>target</parameter>
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specifies the target of the query operation and must be <constant>GL_RENDERBUFFER</constant>. <parameter>pname</parameter> specifies
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the parameter whose value to query and must be one of <constant>GL_RENDERBUFFER_WIDTH</constant>, <constant>GL_RENDERBUFFER_HEIGHT</constant>,
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<constant>GL_RENDERBUFFER_INTERNAL_FORMAT</constant>, <constant>GL_RENDERBUFFER_RED_SIZE</constant>, <constant>GL_RENDERBUFFER_GREEN_SIZE</constant>,
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<constant>GL_RENDERBUFFER_BLUE_SIZE</constant>, <constant>GL_RENDERBUFFER_ALPHA_SIZE</constant>, <constant>GL_RENDERBUFFER_DEPTH_SIZE</constant>,
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<constant>GL_RENDERBUFFER_DEPTH_SIZE</constant>, <constant>GL_RENDERBUFFER_STENCIL_SIZE</constant>, or <constant>GL_RENDERBUFFER_SAMPLES</constant>.
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</para>
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<para>
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Upon a successful return from <function>glGetRenderbufferParameteriv</function>, if <parameter>pname</parameter> is <constant>GL_RENDERBUFFER_WIDTH</constant>,
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<constant>GL_RENDERBUFFER_HEIGHT</constant>, <constant>GL_RENDERBUFFER_INTERNAL_FORMAT</constant>, or <constant>GL_RENDERBUFFER_SAMPLES</constant>,
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then <parameter>params</parameter> will contain the width in pixels, the height in pixels, the internal format, or the number of samples, respectively,
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of the image of the renderbuffer currently bound to <parameter>target</parameter>.
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</para>
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<para>
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If <parameter>pname</parameter> is <constant>GL_RENDERBUFFER_RED_SIZE</constant>, <constant>GL_RENDERBUFFER_GREEN_SIZE</constant>,
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<constant>GL_RENDERBUFFER_BLUE_SIZE</constant>, <constant>GL_RENDERBUFFER_ALPHA_SIZE</constant>, <constant>GL_RENDERBUFFER_DEPTH_SIZE</constant>,
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or <constant>GL_RENDERBUFFER_STENCIL_SIZE</constant>, then <parameter>params</parameter> will contain the actual resolutions (not the resolutions
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specified when the image array was defined) for the red, green, blue, alpha depth, or stencil components, respectively, of the image of the
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renderbuffer currently bound to <parameter>target</parameter>.
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</para>
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</refsect1>
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<refsect1 xml:id="errors"><title>Errors</title>
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<para>
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<constant>GL_INVALID_ENUM</constant> is generated if <parameter>pname</parameter> is not one of the accepted tokens.
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</para>
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</refsect1>
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<refsect1 xml:id="seealso"><title>See Also</title>
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<para>
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<citerefentry><refentrytitle>glGenRenderbuffers</refentrytitle></citerefentry>,
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<citerefentry><refentrytitle>glFramebufferRenderbuffer</refentrytitle></citerefentry>,
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<citerefentry><refentrytitle>glBindRenderbuffer</refentrytitle></citerefentry>,
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<citerefentry><refentrytitle>glRenderbufferStorage</refentrytitle></citerefentry>,
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<citerefentry><refentrytitle>glRenderbufferStorageMultisample</refentrytitle></citerefentry>
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</para>
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</refsect1>
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<refsect1 xml:id="Copyright"><title>Copyright</title>
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<para>
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Copyright <trademark class="copyright"/> 2010-2013 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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<link xmlns:xlink="http://www.w3.org/1999/xlink" xlink:href="http://opencontent.org/openpub/">http://opencontent.org/openpub/</link>.
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</para>
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</refsect1>
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</refentry>
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