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<?xml version="1.0" encoding="ISO-8859-1"?>
<!DOCTYPE html
PUBLIC "-//W3C//DTD XHTML 1.1 plus MathML 2.0//EN" "http://www.w3.org/TR/MathML2/dtd/xhtml-math11-f.dtd">
<html
xmlns="http://www.w3.org/1999/xhtml"
xmlns:mml="http://www.w3.org/1998/Math/MathML"
><head><title>glColorSubTable</title><link rel="stylesheet" href="style.css" type="text/css"/><meta name="generator" content="DocBook XSL Stylesheets V1.59.1"/><link rel="home" href="index.xml" title="PyOpenGL 2.0.1.07 Man Pages"/><link rel="up" href="reference-GL.xml" title="GL"/><link rel="previous" href="glColorPointer.3G.xml" title="glColorPointer"/><link rel="next" href="glColorTable.3G.xml" title="glColorTable"/></head><body bgcolor="white" text="black" link="#0000FF" vlink="#840084" alink="#0000FF"><div class="navheader"><table width="100%" summary="Navigation header"><tr><th colspan="3" align="center">glColorSubTable</th></tr><tr><td width="20%" align="left"><a accesskey="p" href="glColorPointer.3G.xml">Prev</a></td><th width="60%" align="center">GL</th><td width="20%" align="right"><a accesskey="n" href="glColorTable.3G.xml">Next</a></td></tr></table><hr/></div><div class="refentry" lang="en"><a name="glColorSubTable.3G"/><div class="titlepage"/><div class="refnamediv"><a name="glColorSubTable.3G-name"/><h2>Name</h2><p>glColorSubTable — respecify a portion of a color table</p></div><div class="refsynopsisdiv"><a name="glColorSubTable.3G-c_spec"/><h2>C Specification</h2><table class="funcprototype" border="0" cellpadding="0" cellspacing="0"><tr><td valign="top"><code>void<tt>glColorSubTable</tt></code></td><td valign="top"><code>(</code></td><td valign="top"><code>GLenum<i><tt>target</tt></i>, GLsizei<i><tt>start</tt></i>, GLsizei<i><tt>count</tt></i>, GLenum<i><tt>format</tt></i>, GLenum<i><tt>type</tt></i>, constGLvoid*<i><tt>data</tt></i>);</code></td></tr></table></div><div class="refsynopsisdiv"><a name="glColorSubTable.3G-python_spec"/><h2>Python Specification</h2><table class="funcprototype" border="0" cellpadding="0" cellspacing="0"><tr><td valign="top"><code>void<tt>glColorSubTable</tt></code></td><td valign="top"><code>(</code></td><td valign="top"><code>GLenum<i><tt>target</tt></i>, GLsizei<i><tt>start</tt></i>, GLsizei<i><tt>count</tt></i>, GLenum<i><tt>format</tt></i>, GLenum<i><tt>type</tt></i>, constGLvoid*<i><tt>data</tt></i>);</code></td></tr></table></div><div class="refsect1" lang="en"><a name="glColorSubTable.3G-parameters"/><h2>Parameters</h2><div class="variablelist"><dl><dt><span class="term"><i><tt>target</tt></i></span></dt><dd>
Must be one of <tt>GL_COLOR_TABLE</tt>, <tt>GL_POST_CONVOLUTION_COLOR_TABLE</tt>,
or <tt>GL_POST_COLOR_MATRIX_COLOR_TABLE</tt>.
</dd><dt><span class="term"><i><tt>start</tt></i></span></dt><dd>
The starting index of the portion of the color table to be replaced.
</dd><dt><span class="term"><i><tt>count</tt></i></span></dt><dd>
The number of table entries to replace.
</dd><dt><span class="term"><i><tt>format</tt></i></span></dt><dd>
The of the pixel data in <i><tt>data</tt></i>. The allowable values are <tt>GL_RED</tt>,
<tt>GL_GREEN</tt>, <tt>GL_BLUE</tt>, <tt>GL_ALPHA</tt>,
<tt>GL_LUMINANCE</tt>, <tt>GL_LUMINANCE_ALPHA</tt>, <tt>GL_RGB</tt>,
<tt>GL_BGR</tt>, <tt>GL_RGBA</tt>, and <tt>GL_BGRA</tt>.
</dd><dt><span class="term"><i><tt>type</tt></i></span></dt><dd>
The type of the pixel data in <i><tt>data</tt></i>. The allowable values are
<tt>GL_UNSIGNED_BYTE</tt>, <tt>GL_BYTE</tt>,
<tt>GL_UNSIGNED_SHORT</tt>, <tt>GL_SHORT</tt>,
<tt>GL_UNSIGNED_INT</tt>, <tt>GL_INT</tt>, <tt>GL_FLOAT</tt>,
<tt>GL_UNSIGNED_BYTE_3_3_2</tt>, <tt>GL_UNSIGNED_BYTE_2_3_3_REV</tt>,
<tt>GL_UNSIGNED_SHORT_5_6_5</tt>, <tt>GL_UNSIGNED_SHORT_5_6_5_REV</tt>,
<tt>GL_UNSIGNED_SHORT_4_4_4_4</tt>, <tt>GL_UNSIGNED_SHORT_4_4_4_4_REV</tt>,
<tt>GL_UNSIGNED_SHORT_5_5_5_1</tt>, <tt>GL_UNSIGNED_SHORT_1_5_5_5_REV</tt>,
<tt>GL_UNSIGNED_INT_8_8_8_8</tt>, <tt>GL_UNSIGNED_INT_8_8_8_8_REV</tt>,
<tt>GL_UNSIGNED_INT_10_10_10_2</tt>, and <tt>GL_UNSIGNED_INT_2_10_10_10_REV</tt>.
</dd><dt><span class="term"><i><tt>data</tt></i></span></dt><dd>
Pointer to a one-dimensional array of pixel data that is processed to replace the specified region of the
color table.
</dd></dl></div></div><div class="refsect1" lang="en"><a name="glColorSubTable.3G-description"/><h2>Description</h2><p>
<tt>glColorSubTable</tt> is used to respecify a contiguous portion of a color table previously defined
using <a href="glColorTable.3G.xml"><tt>glColorTable</tt></a>. The pixels referenced by <i><tt>data</tt></i>
replace the portion of the existing table from indices <i><tt>start</tt></i> to
<i><tt>start</tt></i> + <i><tt>count</tt></i> - 1, inclusive. This region may
not include any entries outside the range of the color table as it was originally specified. It is not an error to
specify a subtexture with width of 0, but such a specification has no effect.
</p></div><div class="refsect1" lang="en"><a name="glColorSubTable.3G-notes"/><h2>Notes</h2><p>
<tt>glColorSubTable</tt> is present only if <tt>GL_ARB_imaging</tt> is returned when <a href="glGetString.3G.xml"><tt>glGetString</tt></a> is called with an argument of <tt>GL_EXTENSIONS</tt>.
</p></div><div class="refsect1" lang="en"><a name="glColorSubTable.3G-errors"/><h2>Errors</h2><p>
<tt>GL_INVALID_ENUM</tt> is generated if <i><tt>target</tt></i> is not one of the allowable values.
</p><p>
<tt>GL_INVALID_VALUE</tt> is generated if
<i><tt>start</tt></i> + <i><tt>count</tt></i> > width.
</p><p>
<tt>GL_INVALID_ENUM</tt> is generated if <i><tt>format</tt></i> is not one of the allowable values.
</p><p>
<tt>GL_INVALID_ENUM</tt> is generated if <i><tt>type</tt></i> is not one of the allowable values.
</p><p>
<tt>GL_INVALID_OPERATION</tt> is generated if <tt>glColorSubTable</tt> is executed between the
execution of <a href="glBegin.3G.xml"><tt>glBegin</tt></a> and the corresponding execution of <a href="glBegin.3G.xml"><tt>glEnd</tt></a>.
</p></div><div class="refsect1" lang="en"><a name="glColorSubTable.3G-associated_gets"/><h2>Associated Gets</h2><p>
<a href="glGetColorTable.3G.xml"><tt>glGetColorTable</tt></a>, <tt>glGetColorTableParameter</tt>
</p></div><div class="refsect1" lang="en"><a name="glColorSubTable.3G-see_also"/><h2>See Also</h2><p>
<span class="simplelist"><a href="glColorSubTable.3G.xml">glColorSubTable</a>, <a href="glColorTableParameter.3G.xml">glColorTableParameter</a>, <a href="glCopyColorTable.3G.xml">glCopyColorTable</a>, <a href="glCopyColorSubTable.3G.xml">glCopyColorSubTable</a>, <a href="glGetColorTable.3G.xml">glGetColorTable</a></span>
</p></div></div><div class="navfooter"><hr/><table width="100%" summary="Navigation footer"><tr><td width="40%" align="left"><a accesskey="p" href="glColorPointer.3G.xml">Prev</a></td><td width="20%" align="center"><a accesskey="u" href="reference-GL.xml">Up</a></td><td width="40%" align="right"><a accesskey="n" href="glColorTable.3G.xml">Next</a></td></tr><tr><td width="40%" align="left" valign="top">glColorPointer</td><td width="20%" align="center"><a accesskey="h" href="index.xml">Home</a></td><td width="40%" align="right" valign="top">glColorTable</td></tr></table></div></body></html>
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