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+<?xml version="1.0" encoding="UTF-8"?>
+<!DOCTYPE book PUBLIC "-//OASIS//DTD DocBook MathML Module V1.1b1//EN"
+ "http://www.oasis-open.org/docbook/xml/mathml/1.1CR1/dbmathml.dtd">
+<refentry id="glGet">
+ <refmeta>
+ <refmetainfo>
+ <copyright>
+ <year>1991-2006</year>
+ <holder>Silicon Graphics, Inc.</holder>
+ </copyright>
+ </refmetainfo>
+ <refentrytitle>glGet</refentrytitle>
+ <manvolnum>3G</manvolnum>
+ </refmeta>
+ <refnamediv>
+ <refname>glGet</refname>
+ <refpurpose>return the value or values of a selected parameter</refpurpose>
+ </refnamediv>
+ <refsynopsisdiv><title>C Specification</title>
+ <funcsynopsis>
+ <funcprototype>
+ <funcdef>void <function>glGetBooleanv</function></funcdef>
+ <paramdef>GLenum <parameter>pname</parameter></paramdef>
+ <paramdef>GLboolean * <parameter>params</parameter></paramdef>
+ </funcprototype>
+ </funcsynopsis>
+ </refsynopsisdiv>
+ <refsynopsisdiv><title>C Specification</title>
+ <funcsynopsis>
+ <funcprototype>
+ <funcdef>void <function>glGetDoublev</function></funcdef>
+ <paramdef>GLenum <parameter>pname</parameter></paramdef>
+ <paramdef>GLdouble * <parameter>params</parameter></paramdef>
+ </funcprototype>
+ </funcsynopsis>
+ </refsynopsisdiv>
+ <refsynopsisdiv><title>C Specification</title>
+ <funcsynopsis>
+ <funcprototype>
+ <funcdef>void <function>glGetFloatv</function></funcdef>
+ <paramdef>GLenum <parameter>pname</parameter></paramdef>
+ <paramdef>GLfloat * <parameter>params</parameter></paramdef>
+ </funcprototype>
+ </funcsynopsis>
+ </refsynopsisdiv>
+ <refsynopsisdiv><title>C Specification</title>
+ <funcsynopsis>
+ <funcprototype>
+ <funcdef>void <function>glGetIntegerv</function></funcdef>
+ <paramdef>GLenum <parameter>pname</parameter></paramdef>
+ <paramdef>GLint * <parameter>params</parameter></paramdef>
+ </funcprototype>
+ </funcsynopsis>
+ </refsynopsisdiv>
+ <refsynopsisdiv><title>C Specification</title>
+ <funcsynopsis>
+ <funcprototype>
+ <funcdef>void <function>glGetInteger64v</function></funcdef>
+ <paramdef>GLenum <parameter>pname</parameter></paramdef>
+ <paramdef>GLint64 * <parameter>params</parameter></paramdef>
+ </funcprototype>
+ </funcsynopsis>
+ </refsynopsisdiv>
+ <!-- eqn: ignoring delim $$ -->
+ <refsect1 id="parameters"><title>Parameters</title>
+ <variablelist>
+ <varlistentry>
+ <term><parameter>pname</parameter></term>
+ <listitem>
+ <para>
+ Specifies the parameter value to be returned.
+ The symbolic constants in the list below are accepted.
+ </para>
+ </listitem>
+ </varlistentry>
+ <varlistentry>
+ <term><parameter>params</parameter></term>
+ <listitem>
+ <para>
+ Returns the value or values of the specified parameter.
+ </para>
+ </listitem>
+ </varlistentry>
+ </variablelist>
+ </refsect1>
+ <refsynopsisdiv><title>C Specification</title>
+ <funcsynopsis>
+ <funcprototype>
+ <funcdef>void <function>glGetBooleani_v</function></funcdef>
+ <paramdef>GLenum <parameter>pname</parameter></paramdef>
+ <paramdef>GLuint <parameter>index</parameter></paramdef>
+ <paramdef>GLboolean * <parameter>data</parameter></paramdef>
+ </funcprototype>
+ </funcsynopsis>
+ </refsynopsisdiv>
+ <refsynopsisdiv><title>C Specification</title>
+ <funcsynopsis>
+ <funcprototype>
+ <funcdef>void <function>glGetIntegeri_v</function></funcdef>
+ <paramdef>GLenum <parameter>pname</parameter></paramdef>
+ <paramdef>GLuint <parameter>index</parameter></paramdef>
+ <paramdef>GLint * <parameter>data</parameter></paramdef>
+ </funcprototype>
+ </funcsynopsis>
+ </refsynopsisdiv>
+ <refsynopsisdiv><title>C Specification</title>
+ <funcsynopsis>
+ <funcprototype>
+ <funcdef>void <function>glGetInteger64i_v</function></funcdef>
+ <paramdef>GLenum <parameter>pname</parameter></paramdef>
+ <paramdef>GLuint <parameter>index</parameter></paramdef>
+ <paramdef>GLint64 * <parameter>data</parameter></paramdef>
+ </funcprototype>
+ </funcsynopsis>
+ </refsynopsisdiv>
+ <!-- eqn: ignoring delim $$ -->
+ <refsect1 id="parameters2"><title>Parameters</title>
+ <variablelist>
+ <varlistentry>
+ <term><parameter>pname</parameter></term>
+ <listitem>
+ <para>
+ Specifies the parameter value to be returned.
+ The symbolic constants in the list below are accepted.
+ </para>
+ </listitem>
+ </varlistentry>
+ <varlistentry>
+ <term><parameter>index</parameter></term>
+ <listitem>
+ <para>
+ Specifies the index of the particular element being queried.
+ </para>
+ </listitem>
+ </varlistentry>
+ <varlistentry>
+ <term><parameter>data</parameter></term>
+ <listitem>
+ <para>
+ Returns the value or values of the specified parameter.
+ </para>
+ </listitem>
+ </varlistentry>
+ </variablelist>
+ </refsect1>
+ <refsect1 id="description"><title>Description</title>
+ <para>
+ These four commands return values for simple state variables in GL.
+ <parameter>pname</parameter> is a symbolic constant indicating the state variable to be returned,
+ and <parameter>params</parameter> is a pointer to an array of the indicated type in
+ which to place the returned data.
+ </para>
+ <para>
+ Type conversion is performed if <parameter>params</parameter> has a different type than
+ the state variable value being requested.
+ If <function>glGetBooleanv</function> is called,
+ a floating-point (or integer) value is converted to <constant>GL_FALSE</constant> if
+ and only if it is 0.0 (or 0).
+ Otherwise,
+ it is converted to <constant>GL_TRUE</constant>.
+ If <function>glGetIntegerv</function> is called, boolean values are returned as
+ <constant>GL_TRUE</constant> or <constant>GL_FALSE</constant>, and most floating-point values are
+ rounded to the nearest integer value. Floating-point colors and
+ normals, however, are returned with a linear mapping that maps 1.0 to
+ the most positive representable integer value
+ and
+ <inlineequation><mml:math>
+ <!-- eqn: -1.0: -->
+ <mml:mn>-1.0</mml:mn>
+ </mml:math></inlineequation>
+ to the most negative representable integer value.
+ If <function>glGetFloatv</function> or <function>glGetDoublev</function> is called,
+ boolean values are returned as <constant>GL_TRUE</constant> or <constant>GL_FALSE</constant>,
+ and integer values are converted to floating-point values.
+ </para>
+ <para>
+ The following symbolic constants are accepted by <parameter>pname</parameter>:
+ </para>
+ <variablelist>
+ <varlistentry>
+ <term><constant>GL_ACTIVE_TEXTURE</constant></term>
+ <listitem>
+ <para>
+ </para>
+ <para>
+ <parameter>params</parameter> returns a single value indicating the active multitexture unit.
+ The initial value is <constant>GL_TEXTURE0</constant>.
+ See <citerefentry><refentrytitle>glActiveTexture</refentrytitle></citerefentry>.
+ </para>
+ </listitem>
+ </varlistentry>
+ <varlistentry>
+ <term><constant>GL_ALIASED_LINE_WIDTH_RANGE</constant></term>
+ <listitem>
+ <para>
+ </para>
+ <para>
+ <parameter>params</parameter> returns a pair of values indicating the range of
+ widths supported for aliased lines. See <citerefentry><refentrytitle>glLineWidth</refentrytitle></citerefentry>.
+ </para>
+ </listitem>
+ </varlistentry>
+ <varlistentry>
+ <term><constant>GL_SMOOTH_LINE_WIDTH_RANGE</constant></term>
+ <listitem>
+ <para>
+ </para>
+ <para>
+ <parameter>params</parameter> returns a pair of values indicating the range of
+ widths supported for smooth (antialiased) lines. See <citerefentry><refentrytitle>glLineWidth</refentrytitle></citerefentry>.
+ </para>
+ </listitem>
+ </varlistentry>
+ <varlistentry>
+ <term><constant>GL_SMOOTH_LINE_WIDTH_GRANULARITY</constant></term>
+ <listitem>
+ <para>
+ </para>
+ <para>
+ <parameter>params</parameter> returns a single value indicating the level of
+ quantization applied to smooth line width parameters.
+ </para>
+ </listitem>
+ </varlistentry>
+ <varlistentry>
+ <term><constant>GL_ARRAY_BUFFER_BINDING</constant></term>
+ <listitem>
+ <para>
+ </para>
+ <para>
+ <parameter>params</parameter> returns a single value, the name of the buffer object
+ currently bound to the target <constant>GL_ARRAY_BUFFER</constant>. If no buffer object
+ is bound to this target, 0 is returned. The initial value is 0.
+ See <citerefentry><refentrytitle>glBindBuffer</refentrytitle></citerefentry>.
+ </para>
+ </listitem>
+ </varlistentry>
+ <varlistentry>
+ <term><constant>GL_BLEND</constant></term>
+ <listitem>
+ <para>
+ </para>
+ <para>
+ <parameter>params</parameter> returns a single boolean value indicating whether blending is
+ enabled. The initial value is <constant>GL_FALSE</constant>.
+ See <citerefentry><refentrytitle>glBlendFunc</refentrytitle></citerefentry>.
+ </para>
+ </listitem>
+ </varlistentry>
+ <varlistentry>
+ <term><constant>GL_BLEND_COLOR</constant></term>
+ <listitem>
+ <para>
+ </para>
+ <para>
+ <parameter>params</parameter> returns four values,
+ the red, green, blue, and alpha values which are the components of
+ the blend color.
+ See <citerefentry><refentrytitle>glBlendColor</refentrytitle></citerefentry>.
+ </para>
+ </listitem>
+ </varlistentry>
+ <varlistentry>
+ <term><constant>GL_BLEND_DST_ALPHA</constant></term>
+ <listitem>
+ <para>
+ </para>
+ <para>
+ <parameter>params</parameter> returns one value,
+ the symbolic constant identifying the alpha destination blend
+ function. The initial value is <constant>GL_ZERO</constant>.
+ See <citerefentry><refentrytitle>glBlendFunc</refentrytitle></citerefentry> and <citerefentry><refentrytitle>glBlendFuncSeparate</refentrytitle></citerefentry>.
+ </para>
+ </listitem>
+ </varlistentry>
+ <varlistentry>
+ <term><constant>GL_BLEND_DST_RGB</constant></term>
+ <listitem>
+ <para>
+ </para>
+ <para>
+ <parameter>params</parameter> returns one value,
+ the symbolic constant identifying the RGB destination blend
+ function. The initial value is <constant>GL_ZERO</constant>.
+ See <citerefentry><refentrytitle>glBlendFunc</refentrytitle></citerefentry> and <citerefentry><refentrytitle>glBlendFuncSeparate</refentrytitle></citerefentry>.
+ </para>
+ </listitem>
+ </varlistentry>
+ <varlistentry>
+ <term><constant>GL_BLEND_EQUATION_RGB</constant></term>
+ <listitem>
+ <para>
+ </para>
+ <para>
+ <parameter>params</parameter> returns one value, a symbolic constant indicating whether
+ the RGB blend equation is <constant>GL_FUNC_ADD</constant>, <constant>GL_FUNC_SUBTRACT</constant>,
+ <constant>GL_FUNC_REVERSE_SUBTRACT</constant>, <constant>GL_MIN</constant> or <constant>GL_MAX</constant>.
+ See <citerefentry><refentrytitle>glBlendEquationSeparate</refentrytitle></citerefentry>.
+ </para>
+ </listitem>
+ </varlistentry>
+ <varlistentry>
+ <term><constant>GL_BLEND_EQUATION_ALPHA</constant></term>
+ <listitem>
+ <para>
+ </para>
+ <para>
+ <parameter>params</parameter> returns one value, a symbolic constant indicating whether
+ the Alpha blend equation is <constant>GL_FUNC_ADD</constant>, <constant>GL_FUNC_SUBTRACT</constant>,
+ <constant>GL_FUNC_REVERSE_SUBTRACT</constant>, <constant>GL_MIN</constant> or <constant>GL_MAX</constant>.
+ See <citerefentry><refentrytitle>glBlendEquationSeparate</refentrytitle></citerefentry>.
+ </para>
+ </listitem>
+ </varlistentry>
+ <varlistentry>
+ <term><constant>GL_BLEND_SRC_ALPHA</constant></term>
+ <listitem>
+ <para>
+ </para>
+ <para>
+ <parameter>params</parameter> returns one value,
+ the symbolic constant identifying the alpha source blend function. The initial
+ value is <constant>GL_ONE</constant>.
+ See <citerefentry><refentrytitle>glBlendFunc</refentrytitle></citerefentry> and <citerefentry><refentrytitle>glBlendFuncSeparate</refentrytitle></citerefentry>.
+ </para>
+ </listitem>
+ </varlistentry>
+ <varlistentry>
+ <term><constant>GL_BLEND_SRC_RGB</constant></term>
+ <listitem>
+ <para>
+ </para>
+ <para>
+ <parameter>params</parameter> returns one value,
+ the symbolic constant identifying the RGB source blend function. The initial
+ value is <constant>GL_ONE</constant>.
+ See <citerefentry><refentrytitle>glBlendFunc</refentrytitle></citerefentry> and <citerefentry><refentrytitle>glBlendFuncSeparate</refentrytitle></citerefentry>.
+ </para>
+ </listitem>
+ </varlistentry>
+ <varlistentry>
+ <term><constant>GL_COLOR_CLEAR_VALUE</constant></term>
+ <listitem>
+ <para>
+ </para>
+ <para>
+ <parameter>params</parameter> returns four values:
+ the red, green, blue, and alpha values used to clear the color buffers.
+ Integer values,
+ if requested,
+ are linearly mapped from the internal floating-point representation such
+ that 1.0 returns the most positive representable integer value,
+ and
+ <inlineequation><mml:math>
+ <!-- eqn: -1.0: -->
+ <mml:mn>-1.0</mml:mn>
+ </mml:math></inlineequation>
+ returns the most negative representable integer
+ value. The initial value is (0, 0, 0, 0).
+ See <citerefentry><refentrytitle>glClearColor</refentrytitle></citerefentry>.
+ </para>
+ </listitem>
+ </varlistentry>
+ <varlistentry>
+ <term><constant>GL_COLOR_LOGIC_OP</constant></term>
+ <listitem>
+ <para>
+ </para>
+ <para>
+ <parameter>params</parameter> returns a single boolean value indicating whether a fragment's
+ RGBA color values are merged into the framebuffer using a logical
+ operation. The initial value is <constant>GL_FALSE</constant>.
+ See <citerefentry><refentrytitle>glLogicOp</refentrytitle></citerefentry>.
+ </para>
+ </listitem>
+ </varlistentry>
+ <varlistentry>
+ <term><constant>GL_COLOR_WRITEMASK</constant></term>
+ <listitem>
+ <para>
+ </para>
+ <para>
+ <parameter>params</parameter> returns four boolean values:
+ the red, green, blue, and alpha write enables for the color
+ buffers. The initial value is (<constant>GL_TRUE</constant>, <constant>GL_TRUE</constant>,
+ <constant>GL_TRUE</constant>, <constant>GL_TRUE</constant>).
+ See <citerefentry><refentrytitle>glColorMask</refentrytitle></citerefentry>.
+ </para>
+ </listitem>
+ </varlistentry>
+ <varlistentry>
+ <term><constant>GL_COMPRESSED_TEXTURE_FORMATS</constant></term>
+ <listitem>
+ <para>
+ </para>
+ <para>
+ <parameter>params</parameter> returns a list of symbolic
+ constants of length <constant>GL_NUM_COMPRESSED_TEXTURE_FORMATS</constant>
+ indicating which compressed texture formats are available.
+ See <citerefentry><refentrytitle>glCompressedTexImage2D</refentrytitle></citerefentry>.
+ </para>
+ </listitem>
+ </varlistentry>
+ <varlistentry>
+ <term><constant>GL_CULL_FACE</constant></term>
+ <listitem>
+ <para>
+ </para>
+ <para>
+ <parameter>params</parameter> returns a single boolean value indicating whether polygon culling
+ is enabled. The initial value is <constant>GL_FALSE</constant>.
+ See <citerefentry><refentrytitle>glCullFace</refentrytitle></citerefentry>.
+ </para>
+ </listitem>
+ </varlistentry>
+ <varlistentry>
+ <term><constant>GL_CURRENT_PROGRAM</constant></term>
+ <listitem>
+ <para>
+ </para>
+ <para>
+ <parameter>params</parameter> returns one value,
+ the name of the program object that is currently active, or 0 if no program object is active.
+ See <citerefentry><refentrytitle>glUseProgram</refentrytitle></citerefentry>.
+ </para>
+ </listitem>
+ </varlistentry>
+ <varlistentry>
+ <term><constant>GL_DEPTH_CLEAR_VALUE</constant></term>
+ <listitem>
+ <para>
+ </para>
+ <para>
+ <parameter>params</parameter> returns one value,
+ the value that is used to clear the depth buffer.
+ Integer values,
+ if requested,
+ are linearly mapped from the internal floating-point representation such
+ that 1.0 returns the most positive representable integer value,
+ and
+ <inlineequation><mml:math>
+ <!-- eqn: -1.0: -->
+ <mml:mn>-1.0</mml:mn>
+ </mml:math></inlineequation>
+ returns the most negative representable integer
+ value. The initial value is 1.
+ See <citerefentry><refentrytitle>glClearDepth</refentrytitle></citerefentry>.
+ </para>
+ </listitem>
+ </varlistentry>
+ <varlistentry>
+ <term><constant>GL_DEPTH_FUNC</constant></term>
+ <listitem>
+ <para>
+ </para>
+ <para>
+ <parameter>params</parameter> returns one value,
+ the symbolic constant that indicates the depth comparison
+ function. The initial value is <constant>GL_LESS</constant>.
+ See <citerefentry><refentrytitle>glDepthFunc</refentrytitle></citerefentry>.
+ </para>
+ </listitem>
+ </varlistentry>
+ <varlistentry>
+ <term><constant>GL_DEPTH_RANGE</constant></term>
+ <listitem>
+ <para>
+ </para>
+ <para>
+ <parameter>params</parameter> returns two values:
+ the near and far mapping limits for the depth buffer.
+ Integer values,
+ if requested,
+ are linearly mapped from the internal floating-point representation such
+ that 1.0 returns the most positive representable integer value,
+ and
+ <inlineequation><mml:math>
+ <!-- eqn: -1.0: -->
+ <mml:mn>-1.0</mml:mn>
+ </mml:math></inlineequation>
+ returns the most negative representable integer
+ value. The initial value is (0, 1).
+ See <citerefentry><refentrytitle>glDepthRange</refentrytitle></citerefentry>.
+ </para>
+ </listitem>
+ </varlistentry>
+ <varlistentry>
+ <term><constant>GL_DEPTH_TEST</constant></term>
+ <listitem>
+ <para>
+ </para>
+ <para>
+ <parameter>params</parameter> returns a single boolean value indicating whether depth testing
+ of fragments is enabled. The initial value is <constant>GL_FALSE</constant>.
+ See <citerefentry><refentrytitle>glDepthFunc</refentrytitle></citerefentry> and <citerefentry><refentrytitle>glDepthRange</refentrytitle></citerefentry>.
+ </para>
+ </listitem>
+ </varlistentry>
+ <varlistentry>
+ <term><constant>GL_DEPTH_WRITEMASK</constant></term>
+ <listitem>
+ <para>
+ </para>
+ <para>
+ <parameter>params</parameter> returns a single boolean value indicating if the depth buffer
+ is enabled for writing. The initial value is <constant>GL_TRUE</constant>.
+ See <citerefentry><refentrytitle>glDepthMask</refentrytitle></citerefentry>.
+ </para>
+ </listitem>
+ </varlistentry>
+ <varlistentry>
+ <term><constant>GL_DITHER</constant></term>
+ <listitem>
+ <para>
+ </para>
+ <para>
+ <parameter>params</parameter> returns a single boolean value indicating whether dithering of
+ fragment colors and indices is enabled. The initial value is <constant>GL_TRUE</constant>.
+ </para>
+ </listitem>
+ </varlistentry>
+ <varlistentry>
+ <term><constant>GL_DOUBLEBUFFER</constant></term>
+ <listitem>
+ <para>
+ </para>
+ <para>
+ <parameter>params</parameter> returns a single boolean value indicating whether double buffering
+ is supported.
+ </para>
+ </listitem>
+ </varlistentry>
+ <varlistentry>
+ <term><constant>GL_DRAW_BUFFER</constant></term>
+ <listitem>
+ <para>
+ </para>
+ <para>
+ <parameter>params</parameter> returns one value,
+ a symbolic constant indicating which buffers are being drawn to.
+ See <citerefentry><refentrytitle>glDrawBuffer</refentrytitle></citerefentry>. The initial value is <constant>GL_BACK</constant> if there
+ are back buffers, otherwise it is <constant>GL_FRONT</constant>.
+ </para>
+ </listitem>
+ </varlistentry>
+ <varlistentry>
+ <term><constant>GL_DRAW_BUFFER</constant><emphasis>i</emphasis></term>
+ <listitem>
+ <para>
+ </para>
+ <para>
+ <parameter>params</parameter> returns one value,
+ a symbolic constant indicating which buffers are being drawn to by the corresponding output color.
+ See <citerefentry><refentrytitle>glDrawBuffers</refentrytitle></citerefentry>.
+ The initial value of <constant>GL_DRAW_BUFFER0</constant> is <constant>GL_BACK</constant> if there
+ are back buffers, otherwise it is <constant>GL_FRONT</constant>. The
+ initial values of draw buffers for all other output colors is <constant>GL_NONE</constant>.
+ </para>
+ </listitem>
+ </varlistentry>
+ <varlistentry>
+ <term><constant>GL_DRAW_FRAMEBUFFER_BINDING</constant></term>
+ <listitem>
+ <para>
+ </para>
+ <para>
+ <parameter>params</parameter> returns one value,
+ the name of the framebuffer object currently bound to the <constant>GL_DRAW_FRAMEBUFFER</constant> target.
+ If the default framebuffer is bound, this value will be zero. The initial value is zero.
+ See <citerefentry><refentrytitle>glBindFramebuffer</refentrytitle></citerefentry>.
+ </para>
+ </listitem>
+ </varlistentry>
+ <varlistentry>
+ <term><constant>GL_READ_FRAMEBUFFER_BINDING</constant></term>
+ <listitem>
+ <para>
+ </para>
+ <para>
+ <parameter>params</parameter> returns one value,
+ the name of the framebuffer object currently bound to the <constant>GL_READ_FRAMEBUFFER</constant> target.
+ If the default framebuffer is bound, this value will be zero. The initial value is zero.
+ See <citerefentry><refentrytitle>glBindFramebuffer</refentrytitle></citerefentry>.
+ </para>
+ </listitem>
+ </varlistentry>
+ <varlistentry>
+ <term><constant>GL_ELEMENT_ARRAY_BUFFER_BINDING</constant></term>
+ <listitem>
+ <para>
+ </para>
+ <para>
+ <parameter>params</parameter> returns a single value, the name of the buffer object
+ currently bound to the target <constant>GL_ELEMENT_ARRAY_BUFFER</constant>. If no buffer object
+ is bound to this target, 0 is returned. The initial value is 0.
+ See <citerefentry><refentrytitle>glBindBuffer</refentrytitle></citerefentry>.
+ </para>
+ </listitem>
+ </varlistentry>
+ <varlistentry>
+ <term><constant>GL_RENDERBUFFER_BINDING</constant></term>
+ <listitem>
+ <para>
+ </para>
+ <para>
+ <parameter>params</parameter> returns a single value, the name of the renderbuffer object
+ currently bound to the target <constant>GL_RENDERBUFFER</constant>. If no renderbuffer object
+ is bound to this target, 0 is returned. The initial value is 0.
+ See <citerefentry><refentrytitle>glBindRenderbuffer</refentrytitle></citerefentry>.
+ </para>
+ </listitem>
+ </varlistentry>
+ <varlistentry>
+ <term><constant>GL_FRAGMENT_SHADER_DERIVATIVE_HINT</constant></term>
+ <listitem>
+ <para>
+ </para>
+ <para>
+ <parameter>params</parameter> returns one value,
+ a symbolic constant indicating the mode of the derivative accuracy hint
+ for fragment shaders. The initial value
+ is <constant>GL_DONT_CARE</constant>.
+ See <citerefentry><refentrytitle>glHint</refentrytitle></citerefentry>.
+ </para>
+ </listitem>
+ </varlistentry>
+ <varlistentry>
+ <term><constant>GL_LINE_SMOOTH</constant></term>
+ <listitem>
+ <para>
+ </para>
+ <para>
+ <parameter>params</parameter> returns a single boolean value indicating whether antialiasing of
+ lines is enabled. The initial value is <constant>GL_FALSE</constant>.
+ See <citerefentry><refentrytitle>glLineWidth</refentrytitle></citerefentry>.
+ </para>
+ </listitem>
+ </varlistentry>
+ <varlistentry>
+ <term><constant>GL_LINE_SMOOTH_HINT</constant></term>
+ <listitem>
+ <para>
+ </para>
+ <para>
+ <parameter>params</parameter> returns one value,
+ a symbolic constant indicating the mode of the line antialiasing
+ hint. The initial value is <constant>GL_DONT_CARE</constant>.
+ See <citerefentry><refentrytitle>glHint</refentrytitle></citerefentry>.
+ </para>
+ </listitem>
+ </varlistentry>
+ <varlistentry>
+ <term><constant>GL_LINE_WIDTH</constant></term>
+ <listitem>
+ <para>
+ </para>
+ <para>
+ <parameter>params</parameter> returns one value,
+ the line width as specified with <citerefentry><refentrytitle>glLineWidth</refentrytitle></citerefentry>. The initial value is
+ 1.
+ </para>
+ </listitem>
+ </varlistentry>
+ <varlistentry>
+ <term><constant>GL_LINE_WIDTH_GRANULARITY</constant></term>
+ <listitem>
+ <para>
+ </para>
+ <para>
+ <parameter>params</parameter> returns one value,
+ the width difference between adjacent supported widths for antialiased lines.
+ See <citerefentry><refentrytitle>glLineWidth</refentrytitle></citerefentry>.
+ </para>
+ </listitem>
+ </varlistentry>
+ <varlistentry>
+ <term><constant>GL_LINE_WIDTH_RANGE</constant></term>
+ <listitem>
+ <para>
+ </para>
+ <para>
+ <parameter>params</parameter> returns two values:
+ the smallest and largest supported widths for antialiased
+ lines.
+ See <citerefentry><refentrytitle>glLineWidth</refentrytitle></citerefentry>.
+ </para>
+ </listitem>
+ </varlistentry>
+ <varlistentry>
+ <term><constant>GL_LOGIC_OP_MODE</constant></term>
+ <listitem>
+ <para>
+ </para>
+ <para>
+ <parameter>params</parameter> returns one value,
+ a symbolic constant indicating the selected logic operation
+ mode. The initial value is <constant>GL_COPY</constant>.
+ See <citerefentry><refentrytitle>glLogicOp</refentrytitle></citerefentry>.
+ </para>
+ </listitem>
+ </varlistentry>
+ <varlistentry>
+ <term><constant>GL_MAX_3D_TEXTURE_SIZE</constant></term>
+ <listitem>
+ <para>
+ </para>
+ <para>
+ <parameter>params</parameter> returns one value,
+ a rough estimate of the largest 3D texture that the GL can handle.
+ The value must be at least 64.
+ Use <constant>GL_PROXY_TEXTURE_3D</constant> to determine if a texture is too large.
+ See <citerefentry><refentrytitle>glTexImage3D</refentrytitle></citerefentry>.
+ </para>
+ </listitem>
+ </varlistentry>
+ <varlistentry>
+ <term><constant>GL_MAX_CLIP_DISTANCES</constant></term>
+ <listitem>
+ <para>
+ </para>
+ <para>
+ <parameter>params</parameter> returns one value,
+ the maximum number of application-defined clipping distances. The value must be at least 8.
+ </para>
+ </listitem>
+ </varlistentry>
+ <varlistentry>
+ <term><constant>GL_MAX_COMBINED_FRAGMENT_UNIFORM_COMPONENTS</constant></term>
+ <listitem>
+ <para>
+ </para>
+ <para>
+ <parameter>params</parameter> returns one value,
+ the number of words for fragment shader uniform variables in all uniform
+ blocks (including default). The value must be at least 1.
+ See <citerefentry><refentrytitle>glUniform</refentrytitle></citerefentry>.
+ </para>
+ </listitem>
+ </varlistentry>
+ <varlistentry>
+ <term><constant>GL_MAX_COMBINED_TEXTURE_IMAGE_UNITS</constant></term>
+ <listitem>
+ <para>
+ </para>
+ <para>
+ <parameter>params</parameter> returns one value, the maximum supported texture image units that
+ can be used to access texture maps from the vertex shader and the fragment processor combined.
+ If both the vertex shader and the fragment processing stage access the same texture image
+ unit, then that counts as using two texture image units against this limit.
+ The value must be at least 48.
+ See <citerefentry><refentrytitle>glActiveTexture</refentrytitle></citerefentry>.
+ </para>
+ </listitem>
+ </varlistentry>
+ <varlistentry>
+ <term><constant>GL_MAX_COMBINED_VERTEX_UNIFORM_COMPONENTS</constant></term>
+ <listitem>
+ <para>
+ </para>
+ <para>
+ <parameter>params</parameter> returns one value,
+ the number of words for vertex shader uniform variables in all uniform
+ blocks (including default). The value must be at least 1.
+ See <citerefentry><refentrytitle>glUniform</refentrytitle></citerefentry>.
+ </para>
+ </listitem>
+ </varlistentry>
+ <varlistentry>
+ <term><constant>GL_MAX_COMBINED_GEOMETRY_UNIFORM_COMPONENTS</constant></term>
+ <listitem>
+ <para>
+ </para>
+ <para>
+ <parameter>params</parameter> returns one value,
+ the number of words for geometry shader uniform variables in all uniform
+ blocks (including default). The value must be at least 1.
+ See <citerefentry><refentrytitle>glUniform</refentrytitle></citerefentry>.
+ </para>
+ </listitem>
+ </varlistentry>
+ <varlistentry>
+ <term><constant>GL_MAX_VARYING_COMPONENTS</constant></term>
+ <listitem>
+ <para>
+ </para>
+ <para>
+ <parameter>params</parameter> returns one value,
+ the number components for varying variables, which must be at least 60.
+ </para>
+ </listitem>
+ </varlistentry>
+ <varlistentry>
+ <term><constant>GL_MAX_COMBINED_UNIFORM_BLOCKS</constant></term>
+ <listitem>
+ <para>
+ </para>
+ <para>
+ <parameter>params</parameter> returns one value,
+ the maximum number of uniform blocks per program. The value must be at least 36.
+ See <citerefentry><refentrytitle>glUniformBlockBinding</refentrytitle></citerefentry>.
+ </para>
+ </listitem>
+ </varlistentry>
+ <varlistentry>
+ <term><constant>GL_MAX_CUBE_MAP_TEXTURE_SIZE</constant></term>
+ <listitem>
+ <para>
+ </para>
+ <para>
+ <parameter>params</parameter> returns one value.
+ The value gives a rough estimate of the largest cube-map texture that
+ the GL can handle. The value must be at least 1024.
+ Use <constant>GL_PROXY_TEXTURE_CUBE_MAP</constant>
+ to determine if a texture is too large.
+ See <citerefentry><refentrytitle>glTexImage2D</refentrytitle></citerefentry>.
+ </para>
+ </listitem>
+ </varlistentry>
+ <varlistentry>
+ <term><constant>GL_MAX_DRAW_BUFFERS</constant></term>
+ <listitem>
+ <para>
+ </para>
+ <para>
+ <parameter>params</parameter> returns one value, the maximum number
+ of simultaneous outputs that may be written in a fragment shader.
+ The value must be at least 8.
+ See <citerefentry><refentrytitle>glDrawBuffers</refentrytitle></citerefentry>.
+ </para>
+ </listitem>
+ </varlistentry>
+ <varlistentry>
+ <term><constant>GL_MAX_DUALSOURCE_DRAW_BUFFERS</constant></term>
+ <listitem>
+ <para>
+ </para>
+ <para>
+ <parameter>params</parameter> returns one value, the maximum number
+ of active draw buffers when using dual-source blending. The value must be at least 1.
+ See <citerefentry><refentrytitle>glBlendFunc</refentrytitle></citerefentry> and
+ <citerefentry><refentrytitle>glBlendFuncSeparate</refentrytitle></citerefentry>.
+ </para>
+ </listitem>
+ </varlistentry>
+ <varlistentry>
+ <term><constant>GL_MAX_ELEMENTS_INDICES</constant></term>
+ <listitem>
+ <para>
+ </para>
+ <para>
+ <parameter>params</parameter> returns one value,
+ the recommended maximum number of vertex array indices.
+ See <citerefentry><refentrytitle>glDrawRangeElements</refentrytitle></citerefentry>.
+ </para>
+ </listitem>
+ </varlistentry>
+ <varlistentry>
+ <term><constant>GL_MAX_ELEMENTS_VERTICES</constant></term>
+ <listitem>
+ <para>
+ </para>
+ <para>
+ <parameter>params</parameter> returns one value,
+ the recommended maximum number of vertex array vertices.
+ See <citerefentry><refentrytitle>glDrawRangeElements</refentrytitle></citerefentry>.
+ </para>
+ </listitem>
+ </varlistentry>
+ <varlistentry>
+ <term><constant>GL_MAX_FRAGMENT_UNIFORM_COMPONENTS</constant></term>
+ <listitem>
+ <para>
+ </para>
+ <para>
+ <parameter>params</parameter> returns one value,
+ the maximum number of individual floating-point, integer, or boolean values that can be held
+ in uniform variable storage for a fragment shader. The value must be at least 1024.
+ See <citerefentry><refentrytitle>glUniform</refentrytitle></citerefentry>.
+ </para>
+ </listitem>
+ </varlistentry>
+ <varlistentry>
+ <term><constant>GL_MAX_FRAGMENT_UNIFORM_BLOCKS</constant></term>
+ <listitem>
+ <para>
+ </para>
+ <para>
+ <parameter>params</parameter> returns one value,
+ the maximum number of uniform blocks per fragment shader. The value must be at least 12.
+ See <citerefentry><refentrytitle>glUniformBlockBinding</refentrytitle></citerefentry>.
+ </para>
+ </listitem>
+ </varlistentry>
+ <varlistentry>
+ <term><constant>GL_MAX_FRAGMENT_INPUT_COMPONENTS</constant></term>
+ <listitem>
+ <para>
+ </para>
+ <para>
+ <parameter>params</parameter> returns one value,
+ the maximum number of components of the inputs read by the fragment shader, which must be at least 128.
+ </para>
+ </listitem>
+ </varlistentry>
+ <varlistentry>
+ <term><constant>GL_MIN_PROGRAM_TEXEL_OFFSET</constant></term>
+ <listitem>
+ <para>
+ </para>
+ <para>
+ <parameter>params</parameter> returns one value,
+ the minimum texel offset allowed in a texture lookup, which must be at most -8.
+ </para>
+ </listitem>
+ </varlistentry>
+ <varlistentry>
+ <term><constant>GL_MAX_PROGRAM_TEXEL_OFFSET</constant></term>
+ <listitem>
+ <para>
+ </para>
+ <para>
+ <parameter>params</parameter> returns one value,
+ the maximum texel offset allowed in a texture lookup, which must be at least 7.
+ </para>
+ </listitem>
+ </varlistentry>
+ <varlistentry>
+ <term><constant>GL_MAX_RECTANGLE_TEXTURE_SIZE</constant></term>
+ <listitem>
+ <para>
+ </para>
+ <para>
+ <parameter>params</parameter> returns one value.
+ The value gives a rough estimate of the largest rectangular texture that
+ the GL can handle. The value must be at least 1024.
+ Use <constant>GL_PROXY_RECTANGLE_TEXTURE</constant>
+ to determine if a texture is too large.
+ See <citerefentry><refentrytitle>glTexImage2D</refentrytitle></citerefentry>.
+ </para>
+ </listitem>
+ </varlistentry>
+ <varlistentry>
+ <term><constant>GL_MAX_TEXTURE_IMAGE_UNITS</constant></term>
+ <listitem>
+ <para>
+ </para>
+ <para>
+ <parameter>params</parameter> returns one value, the maximum supported texture image units that
+ can be used to access texture maps from the fragment shader.
+ The value must be at least 16.
+ See <citerefentry><refentrytitle>glActiveTexture</refentrytitle></citerefentry>.
+ </para>
+ </listitem>
+ </varlistentry>
+ <varlistentry>
+ <term><constant>GL_MAX_TEXTURE_LOD_BIAS</constant></term>
+ <listitem>
+ <para>
+ </para>
+ <para>
+ <parameter>params</parameter> returns one value,
+ the maximum, absolute value of the texture level-of-detail bias. The
+ value must be at least 2.0.
+ </para>
+ </listitem>
+ </varlistentry>
+ <varlistentry>
+ <term><constant>GL_MAX_TEXTURE_SIZE</constant></term>
+ <listitem>
+ <para>
+ </para>
+ <para>
+ <parameter>params</parameter> returns one value.
+ The value gives a rough estimate of the largest texture that
+ the GL can handle. The value must be at least 1024.
+ Use a proxy texture target such as <constant>GL_PROXY_TEXTURE_1D</constant> or <constant>GL_PROXY_TEXTURE_2D</constant>
+ to determine if a texture is too large.
+ See <citerefentry><refentrytitle>glTexImage1D</refentrytitle></citerefentry> and <citerefentry><refentrytitle>glTexImage2D</refentrytitle></citerefentry>.
+ </para>
+ </listitem>
+ </varlistentry>
+ <varlistentry>
+ <term><constant>GL_MAX_RENDERBUFFER_SIZE</constant></term>
+ <listitem>
+ <para>
+ </para>
+ <para>
+ <parameter>params</parameter> returns one value.
+ The value indicates the maximum supported size for renderbuffers.
+ See <citerefentry><refentrytitle>glFramebufferRenderbuffer</refentrytitle></citerefentry>.
+ </para>
+ </listitem>
+ </varlistentry>
+ <varlistentry>
+ <term><constant>GL_MAX_ARRAY_TEXTURE_LAYERS</constant></term>
+ <listitem>
+ <para>
+ </para>
+ <para>
+ <parameter>params</parameter> returns one value.
+ The value indicates the maximum number of layers allowed in an array texture, and must be at least 256.
+ See <citerefentry><refentrytitle>glTexImage2D</refentrytitle></citerefentry>.
+ </para>
+ </listitem>
+ </varlistentry>
+ <varlistentry>
+ <term><constant>GL_MAX_TEXTURE_BUFFER_SIZE</constant></term>
+ <listitem>
+ <para>
+ </para>
+ <para>
+ <parameter>params</parameter> returns one value.
+ The value gives the maximum number of texels allowed in the texel array of a texture buffer object.
+ Value must be at least 65536.
+ </para>
+ </listitem>
+ </varlistentry>
+ <varlistentry>
+ <term><constant>GL_MAX_UNIFORM_BLOCK_SIZE</constant></term>
+ <listitem>
+ <para>
+ </para>
+ <para>
+ <parameter>params</parameter> returns one value,
+ the maximum size in basic machine units of a uniform block.
+ The value must be at least 16384.
+ See <citerefentry><refentrytitle>glUniformBlockBinding</refentrytitle></citerefentry>.
+ </para>
+ </listitem>
+ </varlistentry>
+ <varlistentry>
+ <term><constant>GL_MAX_VARYING_FLOATS</constant></term>
+ <listitem>
+ <para>
+ </para>
+ <para>
+ <parameter>params</parameter> returns one value,
+ the maximum number of interpolators available for processing varying variables used by
+ vertex and fragment shaders. This value represents the number of individual floating-point
+ values that can be interpolated; varying variables declared as vectors, matrices, and arrays
+ will all consume multiple interpolators. The value must be at least 32.
+ </para>
+ </listitem>
+ </varlistentry>
+ <varlistentry>
+ <term><constant>GL_MAX_VERTEX_ATTRIBS</constant></term>
+ <listitem>
+ <para>
+ </para>
+ <para>
+ <parameter>params</parameter> returns one value,
+ the maximum number of 4-component generic vertex attributes accessible to a vertex shader.
+ The value must be at least 16.
+ See <citerefentry><refentrytitle>glVertexAttrib</refentrytitle></citerefentry>.
+ </para>
+ </listitem>
+ </varlistentry>
+ <varlistentry>
+ <term><constant>GL_MAX_VERTEX_TEXTURE_IMAGE_UNITS</constant></term>
+ <listitem>
+ <para>
+ </para>
+ <para>
+ <parameter>params</parameter> returns one value, the maximum supported texture image units that
+ can be used to access texture maps from the vertex shader. The value may be at least 16.
+ See <citerefentry><refentrytitle>glActiveTexture</refentrytitle></citerefentry>.
+ </para>
+ </listitem>
+ </varlistentry>
+ <varlistentry>
+ <term><constant>GL_MAX_GEOMETRY_TEXTURE_IMAGE_UNITS</constant></term>
+ <listitem>
+ <para>
+ </para>
+ <para>
+ <parameter>params</parameter> returns one value, the maximum supported texture image units that
+ can be used to access texture maps from the geometry shader. The value must be at least 16.
+ See <citerefentry><refentrytitle>glActiveTexture</refentrytitle></citerefentry>.
+ </para>
+ </listitem>
+ </varlistentry>
+ <varlistentry>
+ <term><constant>GL_MAX_VERTEX_UNIFORM_COMPONENTS</constant></term>
+ <listitem>
+ <para>
+ </para>
+ <para>
+ <parameter>params</parameter> returns one value,
+ the maximum number of individual floating-point, integer, or boolean values that can be held
+ in uniform variable storage for a vertex shader. The value must be at least 1024.
+ See <citerefentry><refentrytitle>glUniform</refentrytitle></citerefentry>.
+ </para>
+ </listitem>
+ </varlistentry>
+ <varlistentry>
+ <term><constant>GL_MAX_VERTEX_OUTPUT_COMPONENTS</constant></term>
+ <listitem>
+ <para>
+ </para>
+ <para>
+ <parameter>params</parameter> returns one value,
+ the maximum number of components of output written by a vertex shader, which must be at least 64.
+ </para>
+ </listitem>
+ </varlistentry>
+ <varlistentry>
+ <term><constant>GL_MAX_GEOMETRY_UNIFORM_COMPONENTS</constant></term>
+ <listitem>
+ <para>
+ </para>
+ <para>
+ <parameter>params</parameter> returns one value,
+ the maximum number of individual floating-point, integer, or boolean values that can be held
+ in uniform variable storage for a geometry shader. The value must be at least 1024.
+ See <citerefentry><refentrytitle>glUniform</refentrytitle></citerefentry>.
+ </para>
+ </listitem>
+ </varlistentry>
+ <varlistentry>
+ <term><constant>GL_MAX_SAMPLE_MASK_WORDS</constant></term>
+ <listitem>
+ <para>
+ </para>
+ <para>
+ <parameter>params</parameter> returns one value,
+ the maximum number of sample mask words.
+ </para>
+ </listitem>
+ </varlistentry>
+ <varlistentry>
+ <term><constant>GL_MAX_COLOR_TEXTURE_SAMPLES</constant></term>
+ <listitem>
+ <para>
+ </para>
+ <para>
+ <parameter>params</parameter> returns one value,
+ the maximum number of samples in a color multisample texture.
+ </para>
+ </listitem>
+ </varlistentry>
+ <varlistentry>
+ <term><constant>GL_MAX_DEPTH_TEXTURE_SAMPLES</constant></term>
+ <listitem>
+ <para>
+ </para>
+ <para>
+ <parameter>params</parameter> returns one value,
+ the maximum number of samples in a multisample depth or depth-stencil texture.
+ </para>
+ </listitem>
+ </varlistentry>
+ <varlistentry>
+ <term><constant>GL_MAX_DEPTH_TEXTURE_SAMPLES</constant></term>
+ <listitem>
+ <para>
+ </para>
+ <para>
+ <parameter>params</parameter> returns one value,
+ the maximum number of samples in a multisample depth or depth-stencil texture.
+ </para>
+ </listitem>
+ </varlistentry>
+ <varlistentry>
+ <term><constant>GL_MAX_INTEGER_SAMPLES</constant></term>
+ <listitem>
+ <para>
+ </para>
+ <para>
+ <parameter>params</parameter> returns one value,
+ the maximum number of samples supported in integer format multisample buffers.
+ </para>
+ </listitem>
+ </varlistentry>
+ <varlistentry>
+ <term><constant>GL_MAX_SERVER_WAIT_TIMEOUT</constant></term>
+ <listitem>
+ <para>
+ </para>
+ <para>
+ <parameter>params</parameter> returns one value,
+ the maximum <citerefentry><refentrytitle>glWaitSync</refentrytitle></citerefentry> timeout interval.
+ </para>
+ </listitem>
+ </varlistentry>
+ <varlistentry>
+ <term><constant>GL_MAX_UNIFORM_BUFFER_BINDINGS</constant></term>
+ <listitem>
+ <para>
+ </para>
+ <para>
+ <parameter>params</parameter> returns one value,
+ the maximum number of uniform buffer binding points on the context, which must be at least 36.
+ </para>
+ </listitem>
+ </varlistentry>
+ <varlistentry>
+ <term><constant>GL_MAX_UNIFORM_BLOCK_SIZE</constant></term>
+ <listitem>
+ <para>
+ </para>
+ <para>
+ <parameter>params</parameter> returns one value,
+ the maximum size in basic machine units of a uniform block, which must be at least 16384.
+ </para>
+ </listitem>
+ </varlistentry>
+ <varlistentry>
+ <term><constant>GL_UNIFORM_BUFFER_OFFSET_ALIGNMENT</constant></term>
+ <listitem>
+ <para>
+ </para>
+ <para>
+ <parameter>params</parameter> returns one value,
+ the minimum required alignment for uniform buffer sizes and offsets.
+ </para>
+ </listitem>
+ </varlistentry>
+ <varlistentry>
+ <term><constant>GL_MAX_VERTEX_UNIFORM_BLOCKS</constant></term>
+ <listitem>
+ <para>
+ </para>
+ <para>
+ <parameter>params</parameter> returns one value,
+ the maximum number of uniform blocks per vertex shader. The value must be at least 12.
+ See <citerefentry><refentrytitle>glUniformBlockBinding</refentrytitle></citerefentry>.
+ </para>
+ </listitem>
+ </varlistentry>
+ <varlistentry>
+ <term><constant>GL_MAX_GEOMETRY_UNIFORM_BLOCKS</constant></term>
+ <listitem>
+ <para>
+ </para>
+ <para>
+ <parameter>params</parameter> returns one value,
+ the maximum number of uniform blocks per geometry shader. The value must be at least 12.
+ See <citerefentry><refentrytitle>glUniformBlockBinding</refentrytitle></citerefentry>.
+ </para>
+ </listitem>
+ </varlistentry>
+ <varlistentry>
+ <term><constant>GL_MAX_GEOMETRY_INPUT_COMPONENTS</constant></term>
+ <listitem>
+ <para>
+ </para>
+ <para>
+ <parameter>params</parameter> returns one value,
+ the maximum number of components of inputs read by a geometry shader, which must be at least 64.
+ </para>
+ </listitem>
+ </varlistentry>
+ <varlistentry>
+ <term><constant>GL_MAX_GEOMETRY_OUTPUT_COMPONENTS</constant></term>
+ <listitem>
+ <para>
+ </para>
+ <para>
+ <parameter>params</parameter> returns one value,
+ the maximum number of components of outputs written by a geometry shader, which must be at least 128.
+ </para>
+ </listitem>
+ </varlistentry>
+ <varlistentry>
+ <term><constant>GL_MAX_VIEWPORT_DIMS</constant></term>
+ <listitem>
+ <para>
+ </para>
+ <para>
+ <parameter>params</parameter> returns two values:
+ the maximum supported width and height of the viewport.
+ These must be at least as large as the visible dimensions of the display
+ being rendered to.
+ See <citerefentry><refentrytitle>glViewport</refentrytitle></citerefentry>.
+ </para>
+ </listitem>
+ </varlistentry>
+ <varlistentry>
+ <term><constant>GL_NUM_COMPRESSED_TEXTURE_FORMATS</constant></term>
+ <listitem>
+ <para>
+ </para>
+ <para>
+ <parameter>params</parameter> returns a single integer value indicating the number of available
+ compressed texture formats. The minimum value is 4.
+ See <citerefentry><refentrytitle>glCompressedTexImage2D</refentrytitle></citerefentry>.
+ </para>
+ </listitem>
+ </varlistentry>
+ <varlistentry>
+ <term><constant>GL_PACK_ALIGNMENT</constant></term>
+ <listitem>
+ <para>
+ </para>
+ <para>
+ <parameter>params</parameter> returns one value,
+ the byte alignment used for writing pixel data to memory. The initial
+ value is 4.
+ See <citerefentry><refentrytitle>glPixelStore</refentrytitle></citerefentry>.
+ </para>
+ </listitem>
+ </varlistentry>
+ <varlistentry>
+ <term><constant>GL_PACK_IMAGE_HEIGHT</constant></term>
+ <listitem>
+ <para>
+ </para>
+ <para>
+ <parameter>params</parameter> returns one value,
+ the image height used for writing pixel data to memory. The initial
+ value is 0.
+ See <citerefentry><refentrytitle>glPixelStore</refentrytitle></citerefentry>.
+ </para>
+ </listitem>
+ </varlistentry>
+ <varlistentry>
+ <term><constant>GL_PACK_LSB_FIRST</constant></term>
+ <listitem>
+ <para>
+ </para>
+ <para>
+ <parameter>params</parameter> returns a single boolean value indicating whether single-bit
+ pixels being written to memory are written first to the least significant
+ bit of each unsigned byte. The initial value is <constant>GL_FALSE</constant>.
+ See <citerefentry><refentrytitle>glPixelStore</refentrytitle></citerefentry>.
+ </para>
+ </listitem>
+ </varlistentry>
+ <varlistentry>
+ <term><constant>GL_PACK_ROW_LENGTH</constant></term>
+ <listitem>
+ <para>
+ </para>
+ <para>
+ <parameter>params</parameter> returns one value,
+ the row length used for writing pixel data to memory. The initial value is
+ 0.
+ See <citerefentry><refentrytitle>glPixelStore</refentrytitle></citerefentry>.
+ </para>
+ </listitem>
+ </varlistentry>
+ <varlistentry>
+ <term><constant>GL_PACK_SKIP_IMAGES</constant></term>
+ <listitem>
+ <para>
+ </para>
+ <para>
+ <parameter>params</parameter> returns one value,
+ the number of pixel images skipped before the first pixel is written
+ into memory. The initial value is 0.
+ See <citerefentry><refentrytitle>glPixelStore</refentrytitle></citerefentry>.
+ </para>
+ </listitem>
+ </varlistentry>
+ <varlistentry>
+ <term><constant>GL_PACK_SKIP_PIXELS</constant></term>
+ <listitem>
+ <para>
+ </para>
+ <para>
+ <parameter>params</parameter> returns one value,
+ the number of pixel locations skipped before the first pixel is written
+ into memory. The initial value is 0.
+ See <citerefentry><refentrytitle>glPixelStore</refentrytitle></citerefentry>.
+ </para>
+ </listitem>
+ </varlistentry>
+ <varlistentry>
+ <term><constant>GL_PACK_SKIP_ROWS</constant></term>
+ <listitem>
+ <para>
+ </para>
+ <para>
+ <parameter>params</parameter> returns one value,
+ the number of rows of pixel locations skipped before the first pixel is written
+ into memory. The initial value is 0.
+ See <citerefentry><refentrytitle>glPixelStore</refentrytitle></citerefentry>.
+ </para>
+ </listitem>
+ </varlistentry>
+ <varlistentry>
+ <term><constant>GL_PACK_SWAP_BYTES</constant></term>
+ <listitem>
+ <para>
+ </para>
+ <para>
+ <parameter>params</parameter> returns a single boolean value indicating whether the bytes of
+ two-byte and four-byte pixel indices and components are swapped before being
+ written to memory. The initial value is <constant>GL_FALSE</constant>.
+ See <citerefentry><refentrytitle>glPixelStore</refentrytitle></citerefentry>.
+ </para>
+ </listitem>
+ </varlistentry>
+ <varlistentry>
+ <term><constant>GL_PIXEL_PACK_BUFFER_BINDING</constant></term>
+ <listitem>
+ <para>
+ </para>
+ <para>
+ <parameter>params</parameter> returns a single value, the name of the buffer object
+ currently bound to the target <constant>GL_PIXEL_PACK_BUFFER</constant>. If no buffer object
+ is bound to this target, 0 is returned. The initial value is 0.
+ See <citerefentry><refentrytitle>glBindBuffer</refentrytitle></citerefentry>.
+ </para>
+ </listitem>
+ </varlistentry>
+ <varlistentry>
+ <term><constant>GL_PIXEL_UNPACK_BUFFER_BINDING</constant></term>
+ <listitem>
+ <para>
+ </para>
+ <para>
+ <parameter>params</parameter> returns a single value, the name of the buffer object
+ currently bound to the target <constant>GL_PIXEL_UNPACK_BUFFER</constant>. If no buffer object
+ is bound to this target, 0 is returned. The initial value is 0.
+ See <citerefentry><refentrytitle>glBindBuffer</refentrytitle></citerefentry>.
+ </para>
+ </listitem>
+ </varlistentry>
+ <varlistentry>
+ <term><constant>GL_POINT_FADE_THRESHOLD_SIZE</constant></term>
+ <listitem>
+ <para>
+ </para>
+ <para>
+ <parameter>params</parameter> returns one value,
+ the point size threshold for determining the point size.
+ See <citerefentry><refentrytitle>glPointParameter</refentrytitle></citerefentry>.
+ </para>
+ </listitem>
+ </varlistentry>
+ <varlistentry>
+ <term><constant>GL_PRIMITIVE_RESTART_INDEX</constant></term>
+ <listitem>
+ <para>
+ </para>
+ <para>
+ <parameter>params</parameter> returns one value,
+ the current primitive restart index. The initial value is 0.
+ See <citerefentry><refentrytitle>glPrimitiveRestartIndex</refentrytitle></citerefentry>.
+ </para>
+ </listitem>
+ </varlistentry>
+ <varlistentry>
+ <term><constant>GL_PROVOKING_VERTEX</constant></term>
+ <listitem>
+ <para>
+ </para>
+ <para>
+ <parameter>params</parameter> returns one value,
+ the currently selected provoking vertex convention. The initial value is <constant>GL_LAST_VERTEX_CONVENTION</constant>.
+ See <citerefentry><refentrytitle>glProvokingVertex</refentrytitle></citerefentry>.
+ </para>
+ </listitem>
+ </varlistentry>
+ <varlistentry>
+ <term><constant>GL_POINT_SIZE</constant></term>
+ <listitem>
+ <para>
+ </para>
+ <para>
+ <parameter>params</parameter> returns one value,
+ the point size as specified by <citerefentry><refentrytitle>glPointSize</refentrytitle></citerefentry>.
+ The initial value is 1.
+ </para>
+ </listitem>
+ </varlistentry>
+ <varlistentry>
+ <term><constant>GL_POINT_SIZE_GRANULARITY</constant></term>
+ <listitem>
+ <para>
+ </para>
+ <para>
+ <parameter>params</parameter> returns one value,
+ the size difference between adjacent supported sizes for antialiased points.
+ See <citerefentry><refentrytitle>glPointSize</refentrytitle></citerefentry>.
+ </para>
+ </listitem>
+ </varlistentry>
+ <varlistentry>
+ <term><constant>GL_POINT_SIZE_RANGE</constant></term>
+ <listitem>
+ <para>
+ </para>
+ <para>
+ <parameter>params</parameter> returns two values:
+ the smallest and largest supported sizes for antialiased
+ points. The smallest size must be at most 1, and the largest size must
+ be at least 1.
+ See <citerefentry><refentrytitle>glPointSize</refentrytitle></citerefentry>.
+ </para>
+ </listitem>
+ </varlistentry>
+ <varlistentry>
+ <term><constant>GL_POLYGON_OFFSET_FACTOR</constant></term>
+ <listitem>
+ <para>
+ </para>
+ <para>
+ <parameter>params</parameter> returns one value,
+ the scaling factor used to determine the variable offset that is added
+ to the depth value of each fragment generated when a polygon is
+ rasterized. The initial value is 0.
+ See <citerefentry><refentrytitle>glPolygonOffset</refentrytitle></citerefentry>.
+ </para>
+ </listitem>
+ </varlistentry>
+ <varlistentry>
+ <term><constant>GL_POLYGON_OFFSET_UNITS</constant></term>
+ <listitem>
+ <para>
+ </para>
+ <para>
+ <parameter>params</parameter> returns one value.
+ This value is multiplied by an implementation-specific value and then
+ added to the depth value of each fragment
+ generated when a polygon is rasterized. The initial value is 0.
+ See <citerefentry><refentrytitle>glPolygonOffset</refentrytitle></citerefentry>.
+ </para>
+ </listitem>
+ </varlistentry>
+ <varlistentry>
+ <term><constant>GL_POLYGON_OFFSET_FILL</constant></term>
+ <listitem>
+ <para>
+ </para>
+ <para>
+ <parameter>params</parameter> returns a single boolean value indicating whether polygon offset
+ is enabled for polygons in fill mode. The initial value is <constant>GL_FALSE</constant>.
+ See <citerefentry><refentrytitle>glPolygonOffset</refentrytitle></citerefentry>.
+ </para>
+ </listitem>
+ </varlistentry>
+ <varlistentry>
+ <term><constant>GL_POLYGON_OFFSET_LINE</constant></term>
+ <listitem>
+ <para>
+ </para>
+ <para>
+ <parameter>params</parameter> returns a single boolean value indicating whether polygon offset
+ is enabled for polygons in line mode. The initial value is <constant>GL_FALSE</constant>.
+ See <citerefentry><refentrytitle>glPolygonOffset</refentrytitle></citerefentry>.
+ </para>
+ </listitem>
+ </varlistentry>
+ <varlistentry>
+ <term><constant>GL_POLYGON_OFFSET_POINT</constant></term>
+ <listitem>
+ <para>
+ </para>
+ <para>
+ <parameter>params</parameter> returns a single boolean value indicating whether polygon offset
+ is enabled for polygons in point mode. The initial value is <constant>GL_FALSE</constant>.
+ See <citerefentry><refentrytitle>glPolygonOffset</refentrytitle></citerefentry>.
+ </para>
+ </listitem>
+ </varlistentry>
+ <varlistentry>
+ <term><constant>GL_POLYGON_SMOOTH</constant></term>
+ <listitem>
+ <para>
+ </para>
+ <para>
+ <parameter>params</parameter> returns a single boolean value indicating whether antialiasing of
+ polygons is enabled. The initial value is <constant>GL_FALSE</constant>.
+ See <citerefentry><refentrytitle>glPolygonMode</refentrytitle></citerefentry>.
+ </para>
+ </listitem>
+ </varlistentry>
+ <varlistentry>
+ <term><constant>GL_POLYGON_SMOOTH_HINT</constant></term>
+ <listitem>
+ <para>
+ </para>
+ <para>
+ <parameter>params</parameter> returns one value,
+ a symbolic constant indicating the mode of the polygon antialiasing
+ hint. The initial value is <constant>GL_DONT_CARE</constant>.
+ See <citerefentry><refentrytitle>glHint</refentrytitle></citerefentry>.
+ </para>
+ </listitem>
+ </varlistentry>
+ <varlistentry>
+ <term><constant>GL_READ_BUFFER</constant></term>
+ <listitem>
+ <para>
+ </para>
+ <para>
+ <parameter>params</parameter> returns one value,
+ a symbolic constant indicating which color buffer is selected for
+ reading. The initial value is <constant>GL_BACK</constant> if there is a back buffer,
+ otherwise it is <constant>GL_FRONT</constant>.
+ See
+ <citerefentry><refentrytitle>glReadPixels</refentrytitle></citerefentry>.
+ </para>
+ </listitem>
+ </varlistentry>
+ <varlistentry>
+ <term><constant>GL_SAMPLE_BUFFERS</constant></term>
+ <listitem>
+ <para>
+ </para>
+ <para>
+ <parameter>params</parameter> returns a single integer value indicating the number of sample buffers
+ associated with the framebuffer.
+ See <citerefentry><refentrytitle>glSampleCoverage</refentrytitle></citerefentry>.
+ </para>
+ </listitem>
+ </varlistentry>
+ <varlistentry>
+ <term><constant>GL_SAMPLE_COVERAGE_VALUE</constant></term>
+ <listitem>
+ <para>
+ </para>
+ <para>
+ <parameter>params</parameter> returns a single positive floating-point value indicating the
+ current sample coverage value.
+ See <citerefentry><refentrytitle>glSampleCoverage</refentrytitle></citerefentry>.
+ </para>
+ </listitem>
+ </varlistentry>
+ <varlistentry>
+ <term><constant>GL_SAMPLE_COVERAGE_INVERT</constant></term>
+ <listitem>
+ <para>
+ </para>
+ <para>
+ <parameter>params</parameter> returns a single boolean value indicating if the temporary
+ coverage value should be inverted.
+ See <citerefentry><refentrytitle>glSampleCoverage</refentrytitle></citerefentry>.
+ </para>
+ </listitem>
+ </varlistentry>
+ <varlistentry>
+ <term><constant>GL_SAMPLER_BINDING</constant></term>
+ <listitem>
+ <para>
+ </para>
+ <para>
+ <parameter>params</parameter> returns a single value, the name of the sampler object
+ currently bound to the active texture unit. The initial value is 0.
+ See <citerefentry><refentrytitle>glBindSampler</refentrytitle></citerefentry>.
+ </para>
+ </listitem>
+ </varlistentry>
+ <varlistentry>
+ <term><constant>GL_SAMPLES</constant></term>
+ <listitem>
+ <para>
+ </para>
+ <para>
+ <parameter>params</parameter> returns a single integer value indicating the coverage mask size.
+ See <citerefentry><refentrytitle>glSampleCoverage</refentrytitle></citerefentry>.
+ </para>
+ </listitem>
+ </varlistentry>
+ <varlistentry>
+ <term><constant>GL_SCISSOR_BOX</constant></term>
+ <listitem>
+ <para>
+ </para>
+ <para>
+ <parameter>params</parameter> returns four values:
+ the
+ <inlineequation><mml:math><mml:mi mathvariant="italic">x</mml:mi></mml:math></inlineequation>
+ and
+ <inlineequation><mml:math><mml:mi mathvariant="italic">y</mml:mi></mml:math></inlineequation>
+ window coordinates of the scissor box,
+ followed by its width and height.
+ Initially the
+ <inlineequation><mml:math><mml:mi mathvariant="italic">x</mml:mi></mml:math></inlineequation>
+ and
+ <inlineequation><mml:math><mml:mi mathvariant="italic">y</mml:mi></mml:math></inlineequation>
+ window coordinates are both 0 and the
+ width and height are set to the size of the window.
+ See <citerefentry><refentrytitle>glScissor</refentrytitle></citerefentry>.
+ </para>
+ </listitem>
+ </varlistentry>
+ <varlistentry>
+ <term><constant>GL_SCISSOR_TEST</constant></term>
+ <listitem>
+ <para>
+ </para>
+ <para>
+ <parameter>params</parameter> returns a single boolean value indicating whether scissoring is
+ enabled. The initial value is <constant>GL_FALSE</constant>.
+ See <citerefentry><refentrytitle>glScissor</refentrytitle></citerefentry>.
+ </para>
+ </listitem>
+ </varlistentry>
+ <varlistentry>
+ <term><constant>GL_STENCIL_BACK_FAIL</constant></term>
+ <listitem>
+ <para>
+ </para>
+ <para>
+ <parameter>params</parameter> returns one value,
+ a symbolic constant indicating what action is taken for back-facing polygons when the stencil
+ test fails. The initial value is <constant>GL_KEEP</constant>.
+ See <citerefentry><refentrytitle>glStencilOpSeparate</refentrytitle></citerefentry>.
+ </para>
+ </listitem>
+ </varlistentry>
+ <varlistentry>
+ <term><constant>GL_STENCIL_BACK_FUNC</constant></term>
+ <listitem>
+ <para>
+ </para>
+ <para>
+ <parameter>params</parameter> returns one value,
+ a symbolic constant indicating what function is used for back-facing polygons to compare the
+ stencil reference value with the stencil buffer value. The initial value
+ is <constant>GL_ALWAYS</constant>.
+ See <citerefentry><refentrytitle>glStencilFuncSeparate</refentrytitle></citerefentry>.
+ </para>
+ </listitem>
+ </varlistentry>
+ <varlistentry>
+ <term><constant>GL_STENCIL_BACK_PASS_DEPTH_FAIL</constant></term>
+ <listitem>
+ <para>
+ </para>
+ <para>
+ <parameter>params</parameter> returns one value,
+ a symbolic constant indicating what action is taken for back-facing polygons when the stencil
+ test passes,
+ but the depth test fails. The initial value is <constant>GL_KEEP</constant>.
+ See <citerefentry><refentrytitle>glStencilOpSeparate</refentrytitle></citerefentry>.
+ </para>
+ </listitem>
+ </varlistentry>
+ <varlistentry>
+ <term><constant>GL_STENCIL_BACK_PASS_DEPTH_PASS</constant></term>
+ <listitem>
+ <para>
+ </para>
+ <para>
+ <parameter>params</parameter> returns one value,
+ a symbolic constant indicating what action is taken for back-facing polygons when the stencil
+ test passes and the depth test passes. The initial value is <constant>GL_KEEP</constant>.
+ See <citerefentry><refentrytitle>glStencilOpSeparate</refentrytitle></citerefentry>.
+ </para>
+ </listitem>
+ </varlistentry>
+ <varlistentry>
+ <term><constant>GL_STENCIL_BACK_REF</constant></term>
+ <listitem>
+ <para>
+ </para>
+ <para>
+ <parameter>params</parameter> returns one value,
+ the reference value that is compared with the contents of the stencil
+ buffer for back-facing polygons. The initial value is 0.
+ See <citerefentry><refentrytitle>glStencilFuncSeparate</refentrytitle></citerefentry>.
+ </para>
+ </listitem>
+ </varlistentry>
+ <varlistentry>
+ <term><constant>GL_STENCIL_BACK_VALUE_MASK</constant></term>
+ <listitem>
+ <para>
+ </para>
+ <para>
+ <parameter>params</parameter> returns one value,
+ the mask that is used for back-facing polygons to mask both the stencil reference value and the
+ stencil buffer value before they are compared. The initial value is all 1's.
+ See <citerefentry><refentrytitle>glStencilFuncSeparate</refentrytitle></citerefentry>.
+ </para>
+ </listitem>
+ </varlistentry>
+ <varlistentry>
+ <term><constant>GL_STENCIL_BACK_WRITEMASK</constant></term>
+ <listitem>
+ <para>
+ </para>
+ <para>
+ <parameter>params</parameter> returns one value,
+ the mask that controls writing of the stencil bitplanes for back-facing polygons. The initial value
+ is all 1's.
+ See <citerefentry><refentrytitle>glStencilMaskSeparate</refentrytitle></citerefentry>.
+ </para>
+ </listitem>
+ </varlistentry>
+ <varlistentry>
+ <term><constant>GL_STENCIL_CLEAR_VALUE</constant></term>
+ <listitem>
+ <para>
+ </para>
+ <para>
+ <parameter>params</parameter> returns one value,
+ the index to which the stencil bitplanes are cleared. The initial value is
+ 0.
+ See <citerefentry><refentrytitle>glClearStencil</refentrytitle></citerefentry>.
+ </para>
+ </listitem>
+ </varlistentry>
+ <varlistentry>
+ <term><constant>GL_STENCIL_FAIL</constant></term>
+ <listitem>
+ <para>
+ </para>
+ <para>
+ <parameter>params</parameter> returns one value,
+ a symbolic constant indicating what action is taken when the stencil
+ test fails. The initial value is <constant>GL_KEEP</constant>.
+ See <citerefentry><refentrytitle>glStencilOp</refentrytitle></citerefentry>.
+ This stencil state only affects non-polygons
+ and front-facing polygons. Back-facing polygons use separate stencil state.
+ See <citerefentry><refentrytitle>glStencilOpSeparate</refentrytitle></citerefentry>.
+ </para>
+ </listitem>
+ </varlistentry>
+ <varlistentry>
+ <term><constant>GL_STENCIL_FUNC</constant></term>
+ <listitem>
+ <para>
+ </para>
+ <para>
+ <parameter>params</parameter> returns one value,
+ a symbolic constant indicating what function is used to compare the
+ stencil reference value with the stencil buffer value. The initial value
+ is <constant>GL_ALWAYS</constant>.
+ See <citerefentry><refentrytitle>glStencilFunc</refentrytitle></citerefentry>.
+ This stencil state only affects non-polygons
+ and front-facing polygons. Back-facing polygons use separate stencil state.
+ See <citerefentry><refentrytitle>glStencilFuncSeparate</refentrytitle></citerefentry>.
+ </para>
+ </listitem>
+ </varlistentry>
+ <varlistentry>
+ <term><constant>GL_STENCIL_PASS_DEPTH_FAIL</constant></term>
+ <listitem>
+ <para>
+ </para>
+ <para>
+ <parameter>params</parameter> returns one value,
+ a symbolic constant indicating what action is taken when the stencil
+ test passes,
+ but the depth test fails. The initial value is <constant>GL_KEEP</constant>.
+ See <citerefentry><refentrytitle>glStencilOp</refentrytitle></citerefentry>.
+ This stencil state only affects non-polygons
+ and front-facing polygons. Back-facing polygons use separate stencil state.
+ See <citerefentry><refentrytitle>glStencilOpSeparate</refentrytitle></citerefentry>.
+ </para>
+ </listitem>
+ </varlistentry>
+ <varlistentry>
+ <term><constant>GL_STENCIL_PASS_DEPTH_PASS</constant></term>
+ <listitem>
+ <para>
+ </para>
+ <para>
+ <parameter>params</parameter> returns one value,
+ a symbolic constant indicating what action is taken when the stencil
+ test passes and the depth test passes. The initial value is <constant>GL_KEEP</constant>.
+ See <citerefentry><refentrytitle>glStencilOp</refentrytitle></citerefentry>.
+ This stencil state only affects non-polygons
+ and front-facing polygons. Back-facing polygons use separate stencil state.
+ See <citerefentry><refentrytitle>glStencilOpSeparate</refentrytitle></citerefentry>.
+ </para>
+ </listitem>
+ </varlistentry>
+ <varlistentry>
+ <term><constant>GL_STENCIL_REF</constant></term>
+ <listitem>
+ <para>
+ </para>
+ <para>
+ <parameter>params</parameter> returns one value,
+ the reference value that is compared with the contents of the stencil
+ buffer. The initial value is 0.
+ See <citerefentry><refentrytitle>glStencilFunc</refentrytitle></citerefentry>.
+ This stencil state only affects non-polygons
+ and front-facing polygons. Back-facing polygons use separate stencil state.
+ See <citerefentry><refentrytitle>glStencilFuncSeparate</refentrytitle></citerefentry>.
+ </para>
+ </listitem>
+ </varlistentry>
+ <varlistentry>
+ <term><constant>GL_STENCIL_TEST</constant></term>
+ <listitem>
+ <para>
+ </para>
+ <para>
+ <parameter>params</parameter> returns a single boolean value indicating whether stencil testing
+ of fragments is enabled. The initial value is <constant>GL_FALSE</constant>.
+ See <citerefentry><refentrytitle>glStencilFunc</refentrytitle></citerefentry> and <citerefentry><refentrytitle>glStencilOp</refentrytitle></citerefentry>.
+ </para>
+ </listitem>
+ </varlistentry>
+ <varlistentry>
+ <term><constant>GL_STENCIL_VALUE_MASK</constant></term>
+ <listitem>
+ <para>
+ </para>
+ <para>
+ <parameter>params</parameter> returns one value,
+ the mask that is used to mask both the stencil reference value and the
+ stencil buffer value before they are compared. The initial value is all 1's.
+ See <citerefentry><refentrytitle>glStencilFunc</refentrytitle></citerefentry>.
+ This stencil state only affects non-polygons
+ and front-facing polygons. Back-facing polygons use separate stencil state.
+ See <citerefentry><refentrytitle>glStencilFuncSeparate</refentrytitle></citerefentry>.
+ </para>
+ </listitem>
+ </varlistentry>
+ <varlistentry>
+ <term><constant>GL_STENCIL_WRITEMASK</constant></term>
+ <listitem>
+ <para>
+ </para>
+ <para>
+ <parameter>params</parameter> returns one value,
+ the mask that controls writing of the stencil bitplanes. The initial value
+ is all 1's.
+ See <citerefentry><refentrytitle>glStencilMask</refentrytitle></citerefentry>.
+ This stencil state only affects non-polygons
+ and front-facing polygons. Back-facing polygons use separate stencil state.
+ See <citerefentry><refentrytitle>glStencilMaskSeparate</refentrytitle></citerefentry>.
+ </para>
+ </listitem>
+ </varlistentry>
+ <varlistentry>
+ <term><constant>GL_STEREO</constant></term>
+ <listitem>
+ <para>
+ </para>
+ <para>
+ <parameter>params</parameter> returns a single boolean value indicating whether stereo buffers
+ (left and right) are supported.
+ </para>
+ </listitem>
+ </varlistentry>
+ <varlistentry>
+ <term><constant>GL_SUBPIXEL_BITS</constant></term>
+ <listitem>
+ <para>
+ </para>
+ <para>
+ <parameter>params</parameter> returns one value,
+ an estimate of the number of bits of subpixel resolution that are used to
+ position rasterized geometry in window coordinates. The value must be at least 4.
+ </para>
+ </listitem>
+ </varlistentry>
+ <varlistentry>
+ <term><constant>GL_TEXTURE_BINDING_1D</constant></term>
+ <listitem>
+ <para>
+ </para>
+ <para>
+ <parameter>params</parameter> returns a single value, the name of the texture
+ currently bound to the target <constant>GL_TEXTURE_1D</constant>. The initial value is 0.
+ See <citerefentry><refentrytitle>glBindTexture</refentrytitle></citerefentry>.
+ </para>
+ </listitem>
+ </varlistentry>
+ <varlistentry>
+ <term><constant>GL_TEXTURE_BINDING_1D_ARRAY</constant></term>
+ <listitem>
+ <para>
+ </para>
+ <para>
+ <parameter>params</parameter> returns a single value, the name of the texture
+ currently bound to the target <constant>GL_TEXTURE_1D_ARRAY</constant>. The initial value is 0.
+ See <citerefentry><refentrytitle>glBindTexture</refentrytitle></citerefentry>.
+ </para>
+ </listitem>
+ </varlistentry>
+ <varlistentry>
+ <term><constant>GL_TEXTURE_BINDING_2D</constant></term>
+ <listitem>
+ <para>
+ </para>
+ <para>
+ <parameter>params</parameter> returns a single value, the name of the texture
+ currently bound to the target <constant>GL_TEXTURE_2D</constant>. The initial value is 0.
+ See <citerefentry><refentrytitle>glBindTexture</refentrytitle></citerefentry>.
+ </para>
+ </listitem>
+ </varlistentry>
+ <varlistentry>
+ <term><constant>GL_TEXTURE_BINDING_2D_ARRAY</constant></term>
+ <listitem>
+ <para>
+ </para>
+ <para>
+ <parameter>params</parameter> returns a single value, the name of the texture
+ currently bound to the target <constant>GL_TEXTURE_2D_ARRAY</constant>. The initial value is 0.
+ See <citerefentry><refentrytitle>glBindTexture</refentrytitle></citerefentry>.
+ </para>
+ </listitem>
+ </varlistentry>
+ <varlistentry>
+ <term><constant>GL_TEXTURE_BINDING_2D_MULTISAMPLE</constant></term>
+ <listitem>
+ <para>
+ </para>
+ <para>
+ <parameter>params</parameter> returns a single value, the name of the texture
+ currently bound to the target <constant>GL_TEXTURE_2D_MULTISAMPLE</constant>. The initial value is 0.
+ See <citerefentry><refentrytitle>glBindTexture</refentrytitle></citerefentry>.
+ </para>
+ </listitem>
+ </varlistentry>
+ <varlistentry>
+ <term><constant>GL_TEXTURE_BINDING_2D_MULTISAMPLE_ARRAY</constant></term>
+ <listitem>
+ <para>
+ </para>
+ <para>
+ <parameter>params</parameter> returns a single value, the name of the texture
+ currently bound to the target <constant>GL_TEXTURE_2D_MULTISAMPLE_ARRAY</constant>. The initial value is 0.
+ See <citerefentry><refentrytitle>glBindTexture</refentrytitle></citerefentry>.
+ </para>
+ </listitem>
+ </varlistentry>
+ <varlistentry>
+ <term><constant>GL_TEXTURE_BINDING_3D</constant></term>
+ <listitem>
+ <para>
+ </para>
+ <para>
+ <parameter>params</parameter> returns a single value, the name of the texture
+ currently bound to the target <constant>GL_TEXTURE_3D</constant>. The initial value is 0.
+ See <citerefentry><refentrytitle>glBindTexture</refentrytitle></citerefentry>.
+ </para>
+ </listitem>
+ </varlistentry>
+ <varlistentry>
+ <term><constant>GL_TEXTURE_BINDING_BUFFER</constant></term>
+ <listitem>
+ <para>
+ </para>
+ <para>
+ <parameter>params</parameter> returns a single value, the name of the texture
+ currently bound to the target <constant>GL_TEXTURE_BUFFER</constant>. The initial value is 0.
+ See <citerefentry><refentrytitle>glBindTexture</refentrytitle></citerefentry>.
+ </para>
+ </listitem>
+ </varlistentry>
+ <varlistentry>
+ <term><constant>GL_TEXTURE_BINDING_CUBE_MAP</constant></term>
+ <listitem>
+ <para>
+ </para>
+ <para>
+ <parameter>params</parameter> returns a single value, the name of the texture
+ currently bound to the target <constant>GL_TEXTURE_CUBE_MAP</constant>. The initial value is 0.
+ See <citerefentry><refentrytitle>glBindTexture</refentrytitle></citerefentry>.
+ </para>
+ </listitem>
+ </varlistentry>
+ <varlistentry>
+ <term><constant>GL_TEXTURE_BINDING_RECTANGLE</constant></term>
+ <listitem>
+ <para>
+ </para>
+ <para>
+ <parameter>params</parameter> returns a single value, the name of the texture
+ currently bound to the target <constant>GL_TEXTURE_RECTANGLE</constant>. The initial value is 0.
+ See <citerefentry><refentrytitle>glBindTexture</refentrytitle></citerefentry>.
+ </para>
+ </listitem>
+ </varlistentry>
+ <varlistentry>
+ <term><constant>GL_TEXTURE_COMPRESSION_HINT</constant></term>
+ <listitem>
+ <para>
+ </para>
+ <para>
+ <parameter>params</parameter> returns a single value indicating the mode of the texture
+ compression hint. The initial value is <constant>GL_DONT_CARE</constant>.
+ </para>
+ </listitem>
+ </varlistentry>
+ <varlistentry>
+ <term><constant>GL_TEXTURE_BUFFER_BINDING</constant></term>
+ <listitem>
+ <para>
+ </para>
+ <para>
+ <parameter>params</parameter> returns a single value, the name of the texture buffer object
+ currently bound. The initial value is 0.
+ See <citerefentry><refentrytitle>glBindBuffer</refentrytitle></citerefentry>.
+ </para>
+ </listitem>
+ </varlistentry>
+ <varlistentry>
+ <term><constant>GL_TIMESTAMP</constant></term>
+ <listitem>
+ <para>
+ </para>
+ <para>
+ <parameter>params</parameter> returns a single value, the 64-bit value of the current
+ GL time.
+ See <citerefentry><refentrytitle>glQueryCounter</refentrytitle></citerefentry>.
+ </para>
+ </listitem>
+ </varlistentry>
+ <varlistentry>
+ <term><constant>GL_TRANSFORM_FEEDBACK_BUFFER_BINDING</constant></term>
+ <listitem>
+ <para>
+ </para>
+ <para>
+ When used with non-indexed variants of <function>glGet</function> (such as <function>glGetIntegerv</function>),
+ <parameter>params</parameter> returns a single value, the name of the buffer object
+ currently bound to the target <constant>GL_TRANSFORM_FEEDBACK_BUFFER</constant>. If no buffer object
+ is bound to this target, 0 is returned.
+ When used with indexed variants of <function>glGet</function> (such as <function>glGetIntegeri_v</function>),
+ <parameter>params</parameter> returns a single value, the name of the buffer object
+ bound to the indexed transform feedback attribute stream. The initial value is 0 for all targets.
+ See <citerefentry><refentrytitle>glBindBuffer</refentrytitle></citerefentry>, <citerefentry><refentrytitle>glBindBufferBase</refentrytitle></citerefentry>, and
+ <citerefentry><refentrytitle>glBindBufferRange</refentrytitle></citerefentry>.
+ </para>
+ </listitem>
+ </varlistentry>
+ <varlistentry>
+ <term><constant>GL_TRANSFORM_FEEDBACK_BUFFER_START</constant></term>
+ <listitem>
+ <para>
+ </para>
+ <para>
+ When used with indexed variants of <function>glGet</function> (such as <function>glGetInteger64i_v</function>),
+ <parameter>params</parameter> returns a single value, the start offset of the binding range for each
+ transform feedback attribute stream. The initial value is 0 for all streams.
+ See <citerefentry><refentrytitle>glBindBufferRange</refentrytitle></citerefentry>.
+ </para>
+ </listitem>
+ </varlistentry>
+ <varlistentry>
+ <term><constant>GL_TRANSFORM_FEEDBACK_BUFFER_SIZE</constant></term>
+ <listitem>
+ <para>
+ </para>
+ <para>
+ When used with indexed variants of <function>glGet</function> (such as <function>glGetInteger64i_v</function>),
+ <parameter>params</parameter> returns a single value, the size of the binding range for each
+ transform feedback attribute stream. The initial value is 0 for all streams.
+ See <citerefentry><refentrytitle>glBindBufferRange</refentrytitle></citerefentry>.
+ </para>
+ </listitem>
+ </varlistentry>
+ <varlistentry>
+ <term><constant>GL_UNIFORM_BUFFER_BINDING</constant></term>
+ <listitem>
+ <para>
+ </para>
+ <para>
+ When used with non-indexed variants of <function>glGet</function> (such as <function>glGetIntegerv</function>),
+ <parameter>params</parameter> returns a single value, the name of the buffer object
+ currently bound to the target <constant>GL_UNIFORM_BUFFER</constant>. If no buffer object
+ is bound to this target, 0 is returned.
+ When used with indexed variants of <function>glGet</function> (such as <function>glGetIntegeri_v</function>),
+ <parameter>params</parameter> returns a single value, the name of the buffer object
+ bound to the indexed uniform buffer binding point. The initial value is 0 for all targets.
+ See <citerefentry><refentrytitle>glBindBuffer</refentrytitle></citerefentry>, <citerefentry><refentrytitle>glBindBufferBase</refentrytitle></citerefentry>, and
+ <citerefentry><refentrytitle>glBindBufferRange</refentrytitle></citerefentry>.
+ </para>
+ </listitem>
+ </varlistentry>
+ <varlistentry>
+ <term><constant>GL_UNIFORM_BUFFER_START</constant></term>
+ <listitem>
+ <para>
+ </para>
+ <para>
+ When used with indexed variants of <function>glGet</function> (such as <function>glGetInteger64i_v</function>),
+ <parameter>params</parameter> returns a single value, the start offset of the binding range for each
+ indexed uniform buffer binding. The initial value is 0 for all bindings.
+ See <citerefentry><refentrytitle>glBindBufferRange</refentrytitle></citerefentry>.
+ </para>
+ </listitem>
+ </varlistentry>
+ <varlistentry>
+ <term><constant>GL_UNIFORM_BUFFER_SIZE</constant></term>
+ <listitem>
+ <para>
+ </para>
+ <para>
+ When used with indexed variants of <function>glGet</function> (such as <function>glGetInteger64i_v</function>),
+ <parameter>params</parameter> returns a single value, the size of the binding range for each
+ indexed uniform buffer binding. The initial value is 0 for all bindings.
+ See <citerefentry><refentrytitle>glBindBufferRange</refentrytitle></citerefentry>.
+ </para>
+ </listitem>
+ </varlistentry>
+ <varlistentry>
+ <term><constant>GL_UNIFORM_BUFFER_OFFSET_ALIGNMENT</constant></term>
+ <listitem>
+ <para>
+ </para>
+ <para>
+ <parameter>params</parameter> returns a single value, the minimum required alignment
+ for uniform buffer sizes and offset. The initial value is 1.
+ See <citerefentry><refentrytitle>glUniformBlockBinding</refentrytitle></citerefentry>.
+ </para>
+ </listitem>
+ </varlistentry>
+ <varlistentry>
+ <term><constant>GL_UNPACK_ALIGNMENT</constant></term>
+ <listitem>
+ <para>
+ </para>
+ <para>
+ <parameter>params</parameter> returns one value,
+ the byte alignment used for reading pixel data from memory. The initial
+ value is 4.
+ See <citerefentry><refentrytitle>glPixelStore</refentrytitle></citerefentry>.
+ </para>
+ </listitem>
+ </varlistentry>
+ <varlistentry>
+ <term><constant>GL_UNPACK_IMAGE_HEIGHT</constant></term>
+ <listitem>
+ <para>
+ </para>
+ <para>
+ <parameter>params</parameter> returns one value,
+ the image height used for reading pixel data from memory. The initial
+ is 0.
+ See <citerefentry><refentrytitle>glPixelStore</refentrytitle></citerefentry>.
+ </para>
+ </listitem>
+ </varlistentry>
+ <varlistentry>
+ <term><constant>GL_UNPACK_LSB_FIRST</constant></term>
+ <listitem>
+ <para>
+ </para>
+ <para>
+ <parameter>params</parameter> returns a single boolean value indicating whether single-bit
+ pixels being read from memory are read first from the least significant
+ bit of each unsigned byte. The initial value is <constant>GL_FALSE</constant>.
+ See <citerefentry><refentrytitle>glPixelStore</refentrytitle></citerefentry>.
+ </para>
+ </listitem>
+ </varlistentry>
+ <varlistentry>
+ <term><constant>GL_UNPACK_ROW_LENGTH</constant></term>
+ <listitem>
+ <para>
+ </para>
+ <para>
+ <parameter>params</parameter> returns one value,
+ the row length used for reading pixel data from memory. The initial value
+ is 0.
+ See <citerefentry><refentrytitle>glPixelStore</refentrytitle></citerefentry>.
+ </para>
+ </listitem>
+ </varlistentry>
+ <varlistentry>
+ <term><constant>GL_UNPACK_SKIP_IMAGES</constant></term>
+ <listitem>
+ <para>
+ </para>
+ <para>
+ <parameter>params</parameter> returns one value,
+ the number of pixel images skipped before the first pixel is read
+ from memory. The initial value is 0.
+ See <citerefentry><refentrytitle>glPixelStore</refentrytitle></citerefentry>.
+ </para>
+ </listitem>
+ </varlistentry>
+ <varlistentry>
+ <term><constant>GL_UNPACK_SKIP_PIXELS</constant></term>
+ <listitem>
+ <para>
+ </para>
+ <para>
+ <parameter>params</parameter> returns one value,
+ the number of pixel locations skipped before the first pixel is read
+ from memory. The initial value is 0.
+ See <citerefentry><refentrytitle>glPixelStore</refentrytitle></citerefentry>.
+ </para>
+ </listitem>
+ </varlistentry>
+ <varlistentry>
+ <term><constant>GL_UNPACK_SKIP_ROWS</constant></term>
+ <listitem>
+ <para>
+ </para>
+ <para>
+ <parameter>params</parameter> returns one value,
+ the number of rows of pixel locations skipped before the first pixel is read
+ from memory. The initial value is 0.
+ See <citerefentry><refentrytitle>glPixelStore</refentrytitle></citerefentry>.
+ </para>
+ </listitem>
+ </varlistentry>
+ <varlistentry>
+ <term><constant>GL_UNPACK_SWAP_BYTES</constant></term>
+ <listitem>
+ <para>
+ </para>
+ <para>
+ <parameter>params</parameter> returns a single boolean value indicating whether the bytes of
+ two-byte and four-byte pixel indices and components are swapped after being
+ read from memory. The initial value is <constant>GL_FALSE</constant>.
+ See <citerefentry><refentrytitle>glPixelStore</refentrytitle></citerefentry>.
+ </para>
+ </listitem>
+ </varlistentry>
+ <varlistentry>
+ <term><constant>GL_NUM_EXTENSIONS</constant></term>
+ <listitem>
+ <para>
+ </para>
+ <para>
+ <parameter>params</parameter> returns one value,
+ the number of extensions supported by the GL implementation for the current context.
+ See <citerefentry><refentrytitle>glGetString</refentrytitle></citerefentry>.
+ </para>
+ </listitem>
+ </varlistentry>
+ <varlistentry>
+ <term><constant>GL_MAJOR_VERSION</constant></term>
+ <listitem>
+ <para>
+ </para>
+ <para>
+ <parameter>params</parameter> returns one value,
+ the major version number of the OpenGL API supported by the current context.
+ </para>
+ </listitem>
+ </varlistentry>
+ <varlistentry>
+ <term><constant>GL_MINOR_VERSION</constant></term>
+ <listitem>
+ <para>
+ </para>
+ <para>
+ <parameter>params</parameter> returns one value,
+ the minor version number of the OpenGL API supported by the current context.
+ </para>
+ </listitem>
+ </varlistentry>
+ <varlistentry>
+ <term><constant>GL_CONTEXT_FLAGS</constant></term>
+ <listitem>
+ <para>
+ </para>
+ <para>
+ <parameter>params</parameter> returns one value,
+ the flags with which the context was created (such as debugging functionality).
+ </para>
+ </listitem>
+ </varlistentry>
+ <varlistentry>
+ <term><constant>GL_VERTEX_PROGRAM_POINT_SIZE</constant></term>
+ <listitem>
+ <para>
+ </para>
+ <para>
+ <parameter>params</parameter> returns a single boolean value indicating whether vertex
+ program point size mode is enabled. If enabled, and a vertex shader is active, then the
+ point size is taken from the shader built-in <code>gl_PointSize</code>. If disabled,
+ and a vertex shader is active, then the point size is taken from the point state as specified
+ by <citerefentry><refentrytitle>glPointSize</refentrytitle></citerefentry>.
+ The initial value is <constant>GL_FALSE</constant>.
+ </para>
+ </listitem>
+ </varlistentry>
+ <varlistentry>
+ <term><constant>GL_VIEWPORT</constant></term>
+ <listitem>
+ <para>
+ </para>
+ <para>
+ <parameter>params</parameter> returns four values:
+ the
+ <inlineequation><mml:math><mml:mi mathvariant="italic">x</mml:mi></mml:math></inlineequation>
+ and
+ <inlineequation><mml:math><mml:mi mathvariant="italic">y</mml:mi></mml:math></inlineequation>
+ window coordinates of the viewport,
+ followed by its width and height.
+ Initially the
+ <inlineequation><mml:math><mml:mi mathvariant="italic">x</mml:mi></mml:math></inlineequation>
+ and
+ <inlineequation><mml:math><mml:mi mathvariant="italic">y</mml:mi></mml:math></inlineequation>
+ window coordinates are both set to 0,
+ and the width and height are set to the width and height of the window into
+ which the GL will do its rendering.
+ See <citerefentry><refentrytitle>glViewport</refentrytitle></citerefentry>.
+ </para>
+ </listitem>
+ </varlistentry>
+ </variablelist>
+ <para>
+ Many of the boolean parameters can also be queried more easily using
+ <citerefentry><refentrytitle>glIsEnabled</refentrytitle></citerefentry>.
+ </para>
+ </refsect1>
+ <refsect1 id="notes"><title>Notes</title>
+ <para>
+ The following parameters return the associated value for the active texture unit:
+ <constant>GL_TEXTURE_1D</constant>, <constant>GL_TEXTURE_BINDING_1D</constant>,
+ <constant>GL_TEXTURE_2D</constant>, <constant>GL_TEXTURE_BINDING_2D</constant>,
+ <constant>GL_TEXTURE_3D</constant> and <constant>GL_TEXTURE_BINDING_3D</constant>.
+ </para>
+ <para>
+ <constant>GL_MAX_RECTANGLE_TEXTURE_SIZE</constant>, <constant>GL_MAX_TEXTURE_BUFFER_SIZE</constant>,
+ <constant>GL_UNIFORM_BUFFER_BINDING</constant>, <constant>GL_TEXTURE_BUFFER_BINDING</constant>,
+ <constant>GL_MAX_VERTEX_UNIFORM_BLOCKS</constant>, <constant>GL_MAX_FRAGMENT_UNIFORM_BLOCKS</constant>,
+ <constant>GL_MAX_COMBINED_FRAGMENT_UNIFORM_COMPONENTS</constant>, <constant>GL_MAX_COMBINED_VERTEX_UNIFORM_COMPONENTS</constant>
+ <constant>GL_MAX_COMBINED_UNIFORM_BLOCKS</constant>, <constant>GL_MAX_UNIFORM_BLOCK_SIZE</constant>,
+ and <constant>GL_UNIFORM_BUFFER_OFFSET_ALIGNMENT</constant>
+ are available only if the GL version is 3.1 or greater.
+ </para>
+ <para>
+ <constant>GL_MAX_COMBINED_GEOMETRY_UNIFORM_COMPONENTS</constant>, <constant>GL_MAX_GEOMETRY_UNIFORM_BLOCKS</constant>,
+ <constant>GL_MAX_GEOMETRY_INPUT_COMPONENTS</constant>, <constant>GL_MAX_GEOMETRY_OUTPUT_COMPONENTS</constant>,
+ <constant>GL_MAX_GEOMETRY_OUTPUT_VERTICES</constant>, <constant>GL_MAX_GEOMETRY_TOTAL_OUTPUT_COMPONENTS</constant> and
+ <constant>GL_MAX_GEOMETRY_TEXTURE_IMAGE_UNITS</constant> are available only if the GL version is 3.2 or greater.
+ </para>
+ <para>
+ <function>glGetInteger64v</function> and <function>glGetInteger64i_v</function> are available only if
+ the GL version is 3.2 or greater.
+ </para>
+ <para>
+ <constant>GL_MAX_DUALSOURCE_DRAW_BUFFERS</constant>, <constant>GL_SAMPLER_BINDING</constant>, and
+ <constant>GL_TIMESTAMP</constant> are available only if the GL version is 3.3 or greater.
+ </para>
+ </refsect1>
+ <refsect1 id="errors"><title>Errors</title>
+ <para>
+ <constant>GL_INVALID_ENUM</constant> is generated if <parameter>pname</parameter> is not an accepted value.
+ </para>
+ <para>
+ <constant>GL_INVALID_VALUE</constant> is generated on any of <function>glGetBooleani_v</function>,
+ <function>glGetIntegeri_v</function>, or <function>glGetInteger64i_v</function> if
+ <parameter>index</parameter> is outside of the valid range for the indexed state <parameter>target</parameter>.
+ </para>
+ </refsect1>
+ <refsect1 id="seealso"><title>See Also</title>
+ <para>
+ <citerefentry><refentrytitle>glGetActiveUniform</refentrytitle></citerefentry>,
+ <citerefentry><refentrytitle>glGetAttachedShaders</refentrytitle></citerefentry>,
+ <citerefentry><refentrytitle>glGetAttribLocation</refentrytitle></citerefentry>,
+ <citerefentry><refentrytitle>glGetBufferParameter</refentrytitle></citerefentry>,
+ <citerefentry><refentrytitle>glGetBufferPointerv</refentrytitle></citerefentry>,
+ <citerefentry><refentrytitle>glGetBufferSubData</refentrytitle></citerefentry>,
+ <citerefentry><refentrytitle>glGetCompressedTexImage</refentrytitle></citerefentry>,
+ <citerefentry><refentrytitle>glGetError</refentrytitle></citerefentry>,
+ <citerefentry><refentrytitle>glGetProgram</refentrytitle></citerefentry>,
+ <citerefentry><refentrytitle>glGetProgramInfoLog</refentrytitle></citerefentry>,
+ <citerefentry><refentrytitle>glGetQueryiv</refentrytitle></citerefentry>,
+ <citerefentry><refentrytitle>glGetQueryObject</refentrytitle></citerefentry>,
+ <citerefentry><refentrytitle>glGetShader</refentrytitle></citerefentry>,
+ <citerefentry><refentrytitle>glGetShaderInfoLog</refentrytitle></citerefentry>,
+ <citerefentry><refentrytitle>glGetShaderSource</refentrytitle></citerefentry>,
+ <citerefentry><refentrytitle>glGetString</refentrytitle></citerefentry>,
+ <citerefentry><refentrytitle>glGetTexImage</refentrytitle></citerefentry>,
+ <citerefentry><refentrytitle>glGetTexLevelParameter</refentrytitle></citerefentry>,
+ <citerefentry><refentrytitle>glGetTexParameter</refentrytitle></citerefentry>,
+ <citerefentry><refentrytitle>glGetUniform</refentrytitle></citerefentry>,
+ <citerefentry><refentrytitle>glGetUniformLocation</refentrytitle></citerefentry>,
+ <citerefentry><refentrytitle>glGetVertexAttrib</refentrytitle></citerefentry>,
+ <citerefentry><refentrytitle>glGetVertexAttribPointerv</refentrytitle></citerefentry>,
+ <citerefentry><refentrytitle>glIsEnabled</refentrytitle></citerefentry>
+ </para>
+ </refsect1>
+ <refsect1 id="Copyright"><title>Copyright</title>
+ <para>
+ Copyright <trademark class="copyright"></trademark> 1991-2006
+ Silicon Graphics, Inc. This document is licensed under the SGI
+ Free Software B License. For details, see
+ <ulink url="http://oss.sgi.com/projects/FreeB/">http://oss.sgi.com/projects/FreeB/</ulink>.
+ </para>
+ </refsect1>
+</refentry>
HCoop / clinton / guile-figl.git / blobdiff