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99 lines
5 KiB
XML
99 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="glFlushMappedBufferRange">
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<refmeta>
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<refmetainfo>
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<copyright>
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<year>2010</year>
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<holder>Khronos Group</holder>
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</copyright>
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</refmetainfo>
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<refentrytitle>glFlushMappedBufferRange</refentrytitle>
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<manvolnum>3G</manvolnum>
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</refmeta>
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<refnamediv>
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<refname>glFlushMappedBufferRange</refname>
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<refpurpose>indicate modifications to a range of a mapped buffer</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>GLsync <function>glFlushMappedBufferRange</function></funcdef>
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<paramdef>GLenum <parameter>target</parameter></paramdef>
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<paramdef>GLintptr <parameter>offset</parameter></paramdef>
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<paramdef>GLsizeiptr <parameter>length</parameter></paramdef>
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</funcprototype>
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</funcsynopsis>
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</refsynopsisdiv>
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<!-- eqn: ignoring delim $$ -->
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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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Specifies the target of the flush operation. <parameter>target</parameter> must be <constant>GL_ARRAY_BUFFER</constant>,
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<constant>GL_COPY_READ_BUFFER</constant>, <constant>GL_COPY_WRITE_BUFFER</constant>, <constant>GL_ELEMENT_ARRAY_BUFFER</constant>,
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<constant>GL_PIXEL_PACK_BUFFER</constant>, <constant>GL_PIXEL_UNPACK_BUFFER</constant>, <constant>GL_TEXTURE_BUFFER</constant>,
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<constant>GL_TRANSFORM_FEEDBACK_BUFFER</constant>, or <constant>GL_UNIFORM_BUFFER</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>offset</parameter></term>
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<listitem>
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<para>
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Specifies the start of the buffer subrange, in basic machine units.
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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>length</parameter></term>
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<listitem>
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<para>
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Specifies the length of the buffer subrange, in basic machine units.
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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>glFlushMappedBufferRange</function> indicates that modifications have been made to a range of a mapped buffer.
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The buffer must previously have been mapped with the <constant>GL_MAP_FLUSH_EXPLICIT</constant> flag. <parameter>offset</parameter>
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and <parameter>length</parameter> indicate the modified subrange of the mapping, in basic units. The specified subrange to flush
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is relative to the start of the currently mapped range of the buffer. <function>glFlushMappedBufferRange</function> may be called
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multiple times to indicate distinct subranges of the mapping which require flushing.
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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>offset</parameter> or <parameter>length</parameter>
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is negative, or if <parameter>offset</parameter> + <parameter>length</parameter> exceeds the size of the mapping.
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</para>
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<para>
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<constant>GL_INVALID_OPERATION</constant> is generated if zero is bound to <parameter>target</parameter>.
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</para>
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<para>
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<constant>GL_INVALID_OPERATION</constant> is generated if the buffer bound to <parameter>target</parameter> is not
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mapped, or is mapped without the <constant>GL_MAP_FLUSH_EXPLICIT</constant> flag.
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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>glMapBufferRange</refentrytitle></citerefentry>,
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<citerefentry><refentrytitle>glMapBuffer</refentrytitle></citerefentry>,
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<citerefentry><refentrytitle>glUnmapBuffer</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> 2010 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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