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BufferUtils (LWJGL API)
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org.lwjgl</FONT>
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Class BufferUtils</H2>
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<PRE>
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java.lang.Object
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<IMG SRC="../../resources/inherit.gif" ALT="extended by "><B>org.lwjgl.BufferUtils</B>
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</PRE>
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<DL>
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<DT><PRE>public final class <B>BufferUtils</B><DT>extends java.lang.Object</DL>
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</PRE>
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<P>
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Some often-used Buffer code for creating native buffers of the appropriate size.
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<DL>
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<DT><B>Version:</B></DT>
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<DD>$Revision$
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$Id$</DD>
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<DT><B>Author:</B></DT>
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<DD>$Author$</DD>
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<!-- ======== CONSTRUCTOR SUMMARY ======== -->
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<B>Constructor Summary</B></FONT></TH>
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<TR BGCOLOR="white" CLASS="TableRowColor">
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<TD><CODE><B><A HREF="../../org/lwjgl/BufferUtils.html#BufferUtils()">BufferUtils</A></B>()</CODE>
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<!-- ========== METHOD SUMMARY =========== -->
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<B>Method Summary</B></FONT></TH>
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<TR BGCOLOR="white" CLASS="TableRowColor">
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<TD ALIGN="right" VALIGN="top" WIDTH="1%"><FONT SIZE="-1">
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<CODE>static java.nio.ByteBuffer</CODE></FONT></TD>
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<TD><CODE><B><A HREF="../../org/lwjgl/BufferUtils.html#createByteBuffer(int)">createByteBuffer</A></B>(int size)</CODE>
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<BR>
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Construct a direct native-ordered bytebuffer with the specified size.</TD>
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</TR>
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<TR BGCOLOR="white" CLASS="TableRowColor">
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<TD ALIGN="right" VALIGN="top" WIDTH="1%"><FONT SIZE="-1">
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<CODE>static java.nio.CharBuffer</CODE></FONT></TD>
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<TD><CODE><B><A HREF="../../org/lwjgl/BufferUtils.html#createCharBuffer(int)">createCharBuffer</A></B>(int size)</CODE>
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<BR>
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Construct a direct native-order charbuffer with the specified number
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of elements.</TD>
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</TR>
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<TR BGCOLOR="white" CLASS="TableRowColor">
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<TD ALIGN="right" VALIGN="top" WIDTH="1%"><FONT SIZE="-1">
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<CODE>static java.nio.DoubleBuffer</CODE></FONT></TD>
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<TD><CODE><B><A HREF="../../org/lwjgl/BufferUtils.html#createDoubleBuffer(int)">createDoubleBuffer</A></B>(int size)</CODE>
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<BR>
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Construct a direct native-order doublebuffer with the specified number
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of elements.</TD>
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</TR>
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<TR BGCOLOR="white" CLASS="TableRowColor">
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<TD ALIGN="right" VALIGN="top" WIDTH="1%"><FONT SIZE="-1">
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<CODE>static java.nio.FloatBuffer</CODE></FONT></TD>
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<TD><CODE><B><A HREF="../../org/lwjgl/BufferUtils.html#createFloatBuffer(int)">createFloatBuffer</A></B>(int size)</CODE>
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<BR>
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Construct a direct native-order floatbuffer with the specified number
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of elements.</TD>
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</TR>
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<TR BGCOLOR="white" CLASS="TableRowColor">
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<TD ALIGN="right" VALIGN="top" WIDTH="1%"><FONT SIZE="-1">
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<CODE>static java.nio.IntBuffer</CODE></FONT></TD>
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<TD><CODE><B><A HREF="../../org/lwjgl/BufferUtils.html#createIntBuffer(int)">createIntBuffer</A></B>(int size)</CODE>
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<BR>
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Construct a direct native-order intbuffer with the specified number
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of elements.</TD>
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</TR>
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<TR BGCOLOR="white" CLASS="TableRowColor">
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<TD ALIGN="right" VALIGN="top" WIDTH="1%"><FONT SIZE="-1">
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<CODE>static java.nio.LongBuffer</CODE></FONT></TD>
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<TD><CODE><B><A HREF="../../org/lwjgl/BufferUtils.html#createLongBuffer(int)">createLongBuffer</A></B>(int size)</CODE>
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<BR>
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Construct a direct native-order longbuffer with the specified number
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of elements.</TD>
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</TR>
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<TR BGCOLOR="white" CLASS="TableRowColor">
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<TD ALIGN="right" VALIGN="top" WIDTH="1%"><FONT SIZE="-1">
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<CODE>static <A HREF="../../org/lwjgl/PointerBuffer.html" title="class in org.lwjgl">PointerBuffer</A></CODE></FONT></TD>
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<TD><CODE><B><A HREF="../../org/lwjgl/BufferUtils.html#createPointerBuffer(int)">createPointerBuffer</A></B>(int size)</CODE>
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<BR>
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Construct a PointerBuffer with the specified number
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of elements.</TD>
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</TR>
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<TR BGCOLOR="white" CLASS="TableRowColor">
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<TD ALIGN="right" VALIGN="top" WIDTH="1%"><FONT SIZE="-1">
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<CODE>static java.nio.ShortBuffer</CODE></FONT></TD>
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<TD><CODE><B><A HREF="../../org/lwjgl/BufferUtils.html#createShortBuffer(int)">createShortBuffer</A></B>(int size)</CODE>
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<BR>
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Construct a direct native-order shortbuffer with the specified number
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of elements.</TD>
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</TR>
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<TR BGCOLOR="white" CLASS="TableRowColor">
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<TD ALIGN="right" VALIGN="top" WIDTH="1%"><FONT SIZE="-1">
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<CODE>static int</CODE></FONT></TD>
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<TD><CODE><B><A HREF="../../org/lwjgl/BufferUtils.html#getElementSizeExponent(java.nio.Buffer)">getElementSizeExponent</A></B>(java.nio.Buffer buf)</CODE>
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<BR>
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</TD>
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</TR>
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<TR BGCOLOR="white" CLASS="TableRowColor">
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<TD ALIGN="right" VALIGN="top" WIDTH="1%"><FONT SIZE="-1">
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<CODE>static int</CODE></FONT></TD>
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<TD><CODE><B><A HREF="../../org/lwjgl/BufferUtils.html#getOffset(java.nio.Buffer)">getOffset</A></B>(java.nio.Buffer buffer)</CODE>
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<BR>
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A helper function which is used to get the byte offset in an arbitrary buffer
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based on its position</TD>
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</TR>
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<TR BGCOLOR="white" CLASS="TableRowColor">
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<TD ALIGN="right" VALIGN="top" WIDTH="1%"><FONT SIZE="-1">
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<CODE>static void</CODE></FONT></TD>
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<TD><CODE><B><A HREF="../../org/lwjgl/BufferUtils.html#zeroBuffer(java.nio.ByteBuffer)">zeroBuffer</A></B>(java.nio.ByteBuffer b)</CODE>
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<BR>
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Fill buffer with zeros from position to remaining</TD>
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</TR>
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<TR BGCOLOR="white" CLASS="TableRowColor">
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<TD ALIGN="right" VALIGN="top" WIDTH="1%"><FONT SIZE="-1">
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<CODE>static void</CODE></FONT></TD>
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<TD><CODE><B><A HREF="../../org/lwjgl/BufferUtils.html#zeroBuffer(java.nio.CharBuffer)">zeroBuffer</A></B>(java.nio.CharBuffer b)</CODE>
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<BR>
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Fill buffer with zeros from position to remaining</TD>
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</TR>
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<TR BGCOLOR="white" CLASS="TableRowColor">
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<TD ALIGN="right" VALIGN="top" WIDTH="1%"><FONT SIZE="-1">
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<CODE>static void</CODE></FONT></TD>
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<TD><CODE><B><A HREF="../../org/lwjgl/BufferUtils.html#zeroBuffer(java.nio.DoubleBuffer)">zeroBuffer</A></B>(java.nio.DoubleBuffer b)</CODE>
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<BR>
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Fill buffer with zeros from position to remaining</TD>
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</TR>
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<TR BGCOLOR="white" CLASS="TableRowColor">
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<TD ALIGN="right" VALIGN="top" WIDTH="1%"><FONT SIZE="-1">
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<CODE>static void</CODE></FONT></TD>
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<TD><CODE><B><A HREF="../../org/lwjgl/BufferUtils.html#zeroBuffer(java.nio.FloatBuffer)">zeroBuffer</A></B>(java.nio.FloatBuffer b)</CODE>
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<BR>
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Fill buffer with zeros from position to remaining</TD>
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</TR>
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<TR BGCOLOR="white" CLASS="TableRowColor">
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<TD ALIGN="right" VALIGN="top" WIDTH="1%"><FONT SIZE="-1">
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<CODE>static void</CODE></FONT></TD>
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<TD><CODE><B><A HREF="../../org/lwjgl/BufferUtils.html#zeroBuffer(java.nio.IntBuffer)">zeroBuffer</A></B>(java.nio.IntBuffer b)</CODE>
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<BR>
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Fill buffer with zeros from position to remaining</TD>
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</TR>
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<TR BGCOLOR="white" CLASS="TableRowColor">
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<TD ALIGN="right" VALIGN="top" WIDTH="1%"><FONT SIZE="-1">
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<CODE>static void</CODE></FONT></TD>
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<TD><CODE><B><A HREF="../../org/lwjgl/BufferUtils.html#zeroBuffer(java.nio.LongBuffer)">zeroBuffer</A></B>(java.nio.LongBuffer b)</CODE>
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<BR>
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Fill buffer with zeros from position to remaining</TD>
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</TR>
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<TR BGCOLOR="white" CLASS="TableRowColor">
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<TD ALIGN="right" VALIGN="top" WIDTH="1%"><FONT SIZE="-1">
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<CODE>static void</CODE></FONT></TD>
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<TD><CODE><B><A HREF="../../org/lwjgl/BufferUtils.html#zeroBuffer(java.nio.ShortBuffer)">zeroBuffer</A></B>(java.nio.ShortBuffer b)</CODE>
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<BR>
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Fill buffer with zeros from position to remaining</TD>
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</TR>
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</TABLE>
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<A NAME="methods_inherited_from_class_java.lang.Object"><!-- --></A>
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<TABLE BORDER="1" WIDTH="100%" CELLPADDING="3" CELLSPACING="0" SUMMARY="">
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<TR BGCOLOR="#EEEEFF" CLASS="TableSubHeadingColor">
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<TH ALIGN="left"><B>Methods inherited from class java.lang.Object</B></TH>
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</TR>
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<TR BGCOLOR="white" CLASS="TableRowColor">
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<TD><CODE>clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait</CODE></TD>
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</TR>
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</TABLE>
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<P>
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<!-- ========= CONSTRUCTOR DETAIL ======== -->
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<A NAME="constructor_detail"><!-- --></A>
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<TABLE BORDER="1" WIDTH="100%" CELLPADDING="3" CELLSPACING="0" SUMMARY="">
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<B>Constructor Detail</B></FONT></TH>
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</TR>
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</TABLE>
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<A NAME="BufferUtils()"><!-- --></A><H3>
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BufferUtils</H3>
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<PRE>
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public <B>BufferUtils</B>()</PRE>
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<DL>
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</DL>
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<!-- ============ METHOD DETAIL ========== -->
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<A NAME="method_detail"><!-- --></A>
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<TABLE BORDER="1" WIDTH="100%" CELLPADDING="3" CELLSPACING="0" SUMMARY="">
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<B>Method Detail</B></FONT></TH>
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</TR>
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</TABLE>
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<A NAME="createByteBuffer(int)"><!-- --></A><H3>
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createByteBuffer</H3>
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<PRE>
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public static java.nio.ByteBuffer <B>createByteBuffer</B>(int size)</PRE>
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<DL>
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<DD>Construct a direct native-ordered bytebuffer with the specified size.
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<P>
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<DD><DL>
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<DT><B>Parameters:</B><DD><CODE>size</CODE> - The size, in bytes
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<DT><B>Returns:</B><DD>a ByteBuffer</DL>
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</DD>
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</DL>
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<HR>
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<A NAME="createShortBuffer(int)"><!-- --></A><H3>
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createShortBuffer</H3>
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<PRE>
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public static java.nio.ShortBuffer <B>createShortBuffer</B>(int size)</PRE>
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<DL>
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<DD>Construct a direct native-order shortbuffer with the specified number
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of elements.
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<P>
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<DD><DL>
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<DT><B>Parameters:</B><DD><CODE>size</CODE> - The size, in shorts
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<DT><B>Returns:</B><DD>a ShortBuffer</DL>
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</DD>
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</DL>
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<HR>
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<A NAME="createCharBuffer(int)"><!-- --></A><H3>
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createCharBuffer</H3>
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<PRE>
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public static java.nio.CharBuffer <B>createCharBuffer</B>(int size)</PRE>
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<DL>
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<DD>Construct a direct native-order charbuffer with the specified number
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of elements.
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<P>
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<DD><DL>
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<DT><B>Parameters:</B><DD><CODE>size</CODE> - The size, in chars
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<DT><B>Returns:</B><DD>an CharBuffer</DL>
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</DD>
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</DL>
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<HR>
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<A NAME="createIntBuffer(int)"><!-- --></A><H3>
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createIntBuffer</H3>
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<PRE>
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public static java.nio.IntBuffer <B>createIntBuffer</B>(int size)</PRE>
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<DL>
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<DD>Construct a direct native-order intbuffer with the specified number
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of elements.
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<P>
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<DD><DL>
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<DT><B>Parameters:</B><DD><CODE>size</CODE> - The size, in ints
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<DT><B>Returns:</B><DD>an IntBuffer</DL>
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</DD>
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</DL>
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<HR>
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<A NAME="createLongBuffer(int)"><!-- --></A><H3>
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createLongBuffer</H3>
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<PRE>
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public static java.nio.LongBuffer <B>createLongBuffer</B>(int size)</PRE>
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<DL>
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<DD>Construct a direct native-order longbuffer with the specified number
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of elements.
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<P>
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<DD><DL>
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<DT><B>Parameters:</B><DD><CODE>size</CODE> - The size, in longs
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<DT><B>Returns:</B><DD>an LongBuffer</DL>
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</DD>
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</DL>
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<HR>
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<A NAME="createFloatBuffer(int)"><!-- --></A><H3>
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createFloatBuffer</H3>
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<PRE>
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public static java.nio.FloatBuffer <B>createFloatBuffer</B>(int size)</PRE>
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<DL>
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<DD>Construct a direct native-order floatbuffer with the specified number
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of elements.
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<P>
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<DD><DL>
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<DT><B>Parameters:</B><DD><CODE>size</CODE> - The size, in floats
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<DT><B>Returns:</B><DD>a FloatBuffer</DL>
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</DD>
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</DL>
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<HR>
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<A NAME="createDoubleBuffer(int)"><!-- --></A><H3>
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createDoubleBuffer</H3>
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<PRE>
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public static java.nio.DoubleBuffer <B>createDoubleBuffer</B>(int size)</PRE>
|
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<DL>
|
|
<DD>Construct a direct native-order doublebuffer with the specified number
|
|
of elements.
|
|
<P>
|
|
<DD><DL>
|
|
<DT><B>Parameters:</B><DD><CODE>size</CODE> - The size, in floats
|
|
<DT><B>Returns:</B><DD>a FloatBuffer</DL>
|
|
</DD>
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|
</DL>
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<HR>
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|
|
|
<A NAME="createPointerBuffer(int)"><!-- --></A><H3>
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|
createPointerBuffer</H3>
|
|
<PRE>
|
|
public static <A HREF="../../org/lwjgl/PointerBuffer.html" title="class in org.lwjgl">PointerBuffer</A> <B>createPointerBuffer</B>(int size)</PRE>
|
|
<DL>
|
|
<DD>Construct a PointerBuffer with the specified number
|
|
of elements.
|
|
<P>
|
|
<DD><DL>
|
|
<DT><B>Parameters:</B><DD><CODE>size</CODE> - The size, in memory addresses
|
|
<DT><B>Returns:</B><DD>a PointerBuffer</DL>
|
|
</DD>
|
|
</DL>
|
|
<HR>
|
|
|
|
<A NAME="getElementSizeExponent(java.nio.Buffer)"><!-- --></A><H3>
|
|
getElementSizeExponent</H3>
|
|
<PRE>
|
|
public static int <B>getElementSizeExponent</B>(java.nio.Buffer buf)</PRE>
|
|
<DL>
|
|
<DD><DL>
|
|
|
|
<DT><B>Returns:</B><DD>n, where buffer_element_size=2^n.</DL>
|
|
</DD>
|
|
</DL>
|
|
<HR>
|
|
|
|
<A NAME="getOffset(java.nio.Buffer)"><!-- --></A><H3>
|
|
getOffset</H3>
|
|
<PRE>
|
|
public static int <B>getOffset</B>(java.nio.Buffer buffer)</PRE>
|
|
<DL>
|
|
<DD>A helper function which is used to get the byte offset in an arbitrary buffer
|
|
based on its position
|
|
<P>
|
|
<DD><DL>
|
|
|
|
<DT><B>Returns:</B><DD>the position of the buffer, in BYTES</DL>
|
|
</DD>
|
|
</DL>
|
|
<HR>
|
|
|
|
<A NAME="zeroBuffer(java.nio.ByteBuffer)"><!-- --></A><H3>
|
|
zeroBuffer</H3>
|
|
<PRE>
|
|
public static void <B>zeroBuffer</B>(java.nio.ByteBuffer b)</PRE>
|
|
<DL>
|
|
<DD>Fill buffer with zeros from position to remaining
|
|
<P>
|
|
<DD><DL>
|
|
</DL>
|
|
</DD>
|
|
</DL>
|
|
<HR>
|
|
|
|
<A NAME="zeroBuffer(java.nio.ShortBuffer)"><!-- --></A><H3>
|
|
zeroBuffer</H3>
|
|
<PRE>
|
|
public static void <B>zeroBuffer</B>(java.nio.ShortBuffer b)</PRE>
|
|
<DL>
|
|
<DD>Fill buffer with zeros from position to remaining
|
|
<P>
|
|
<DD><DL>
|
|
</DL>
|
|
</DD>
|
|
</DL>
|
|
<HR>
|
|
|
|
<A NAME="zeroBuffer(java.nio.CharBuffer)"><!-- --></A><H3>
|
|
zeroBuffer</H3>
|
|
<PRE>
|
|
public static void <B>zeroBuffer</B>(java.nio.CharBuffer b)</PRE>
|
|
<DL>
|
|
<DD>Fill buffer with zeros from position to remaining
|
|
<P>
|
|
<DD><DL>
|
|
</DL>
|
|
</DD>
|
|
</DL>
|
|
<HR>
|
|
|
|
<A NAME="zeroBuffer(java.nio.IntBuffer)"><!-- --></A><H3>
|
|
zeroBuffer</H3>
|
|
<PRE>
|
|
public static void <B>zeroBuffer</B>(java.nio.IntBuffer b)</PRE>
|
|
<DL>
|
|
<DD>Fill buffer with zeros from position to remaining
|
|
<P>
|
|
<DD><DL>
|
|
</DL>
|
|
</DD>
|
|
</DL>
|
|
<HR>
|
|
|
|
<A NAME="zeroBuffer(java.nio.FloatBuffer)"><!-- --></A><H3>
|
|
zeroBuffer</H3>
|
|
<PRE>
|
|
public static void <B>zeroBuffer</B>(java.nio.FloatBuffer b)</PRE>
|
|
<DL>
|
|
<DD>Fill buffer with zeros from position to remaining
|
|
<P>
|
|
<DD><DL>
|
|
</DL>
|
|
</DD>
|
|
</DL>
|
|
<HR>
|
|
|
|
<A NAME="zeroBuffer(java.nio.LongBuffer)"><!-- --></A><H3>
|
|
zeroBuffer</H3>
|
|
<PRE>
|
|
public static void <B>zeroBuffer</B>(java.nio.LongBuffer b)</PRE>
|
|
<DL>
|
|
<DD>Fill buffer with zeros from position to remaining
|
|
<P>
|
|
<DD><DL>
|
|
</DL>
|
|
</DD>
|
|
</DL>
|
|
<HR>
|
|
|
|
<A NAME="zeroBuffer(java.nio.DoubleBuffer)"><!-- --></A><H3>
|
|
zeroBuffer</H3>
|
|
<PRE>
|
|
public static void <B>zeroBuffer</B>(java.nio.DoubleBuffer b)</PRE>
|
|
<DL>
|
|
<DD>Fill buffer with zeros from position to remaining
|
|
<P>
|
|
<DD><DL>
|
|
</DL>
|
|
</DD>
|
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</DL>
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