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1148 lines
62 KiB
XML
1148 lines
62 KiB
XML
<?xml version="1.0" encoding="UTF-8"?>
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<!DOCTYPE book PUBLIC "-//OASIS//DTD DocBook MathML Module V1.1b1//EN"
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"http://www.oasis-open.org/docbook/xml/mathml/1.1CR1/dbmathml.dtd">
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<refentry id="glGet">
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<refmeta>
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<refmetainfo>
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<copyright>
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<year>1991-2006</year>
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<holder>Silicon Graphics, Inc.</holder>
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</copyright>
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</refmetainfo>
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<refentrytitle>glGet</refentrytitle>
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<manvolnum>3G</manvolnum>
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</refmeta>
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<refnamediv>
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<refname>glGet</refname>
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<refpurpose>return the value or values of a selected parameter</refpurpose>
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</refnamediv>
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<refsynopsisdiv><title>C Specification</title>
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<funcsynopsis>
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<funcprototype>
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<funcdef>void <function>glGetBooleanv</function></funcdef>
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<paramdef>GLenum <parameter>pname</parameter></paramdef>
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<paramdef>GLboolean * <parameter>params</parameter></paramdef>
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</funcprototype>
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</funcsynopsis>
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</refsynopsisdiv>
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<refsynopsisdiv><title>C Specification</title>
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<funcsynopsis>
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<funcprototype>
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<funcdef>void <function>glGetFloatv</function></funcdef>
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<paramdef>GLenum <parameter>pname</parameter></paramdef>
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<paramdef>GLfloat * <parameter>params</parameter></paramdef>
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</funcprototype>
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</funcsynopsis>
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</refsynopsisdiv>
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<refsynopsisdiv><title>C Specification</title>
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<funcsynopsis>
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<funcprototype>
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<funcdef>void <function>glGetIntegerv</function></funcdef>
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<paramdef>GLenum <parameter>pname</parameter></paramdef>
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<paramdef>GLint * <parameter>params</parameter></paramdef>
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</funcprototype>
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</funcsynopsis>
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</refsynopsisdiv>
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<!-- eqn: ignoring delim $$ -->
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<refsect1 id="parameters"><title>Parameters</title>
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<variablelist>
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<varlistentry>
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<term><parameter>pname</parameter></term>
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<listitem>
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<para>
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Specifies the parameter value to be returned.
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The symbolic constants in the list below are accepted.
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</para>
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</listitem>
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</varlistentry>
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<varlistentry>
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<term><parameter>params</parameter></term>
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<listitem>
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<para>
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Returns the value or values of the specified parameter.
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</para>
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</listitem>
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</varlistentry>
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</variablelist>
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</refsect1>
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<refsect1 id="description"><title>Description</title>
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<para>
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These four commands return values for simple state variables in GL.
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<parameter>pname</parameter> is a symbolic constant indicating the state variable to be returned,
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and <parameter>params</parameter> is a pointer to an array of the indicated type in
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which to place the returned data.
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</para>
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<para>
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Type conversion is performed if <parameter>params</parameter> has a different type than
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the state variable value being requested.
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If <function>glGetBooleanv</function> is called,
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a floating-point (or integer) value is converted to <constant>GL_FALSE</constant> if
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and only if it is 0.0 (or 0).
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Otherwise,
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it is converted to <constant>GL_TRUE</constant>.
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If <function>glGetIntegerv</function> is called, boolean values are returned as
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<constant>GL_TRUE</constant> or <constant>GL_FALSE</constant>, and most floating-point values are
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rounded to the nearest integer value. Floating-point colors and
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normals, however, are returned with a linear mapping that maps 1.0 to
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the most positive representable integer value
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and
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<inlineequation><mml:math>
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<!-- eqn: -1.0:-->
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<mml:mn>-1.0</mml:mn>
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</mml:math></inlineequation>
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to the most negative representable integer value.
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If <function>glGetFloatv</function> is called,
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boolean values are returned as <constant>GL_TRUE</constant> or <constant>GL_FALSE</constant>,
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and integer values are converted to floating-point values.
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</para>
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<para>
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The following symbolic constants are accepted by <parameter>pname</parameter>:
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</para>
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<variablelist>
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<varlistentry>
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<term><constant>GL_ACTIVE_TEXTURE</constant></term>
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<listitem>
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<para>
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<parameter>params</parameter> returns a single value indicating the active multitexture unit.
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The initial value is <constant>GL_TEXTURE0</constant>.
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See <citerefentry><refentrytitle>glActiveTexture</refentrytitle></citerefentry>.
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</para>
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</listitem>
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</varlistentry>
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<varlistentry>
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<term><constant>GL_ALIASED_LINE_WIDTH_RANGE</constant></term>
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<listitem>
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<para>
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<parameter>params</parameter> returns two values,
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the smallest and largest supported widths for aliased lines.
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The range must include width 1.
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</para>
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</listitem>
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</varlistentry>
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<varlistentry>
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<term><constant>GL_ALIASED_POINT_SIZE_RANGE</constant></term>
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<listitem>
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<para>
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<parameter>params</parameter> returns two values,
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the smallest and largest supported sizes for aliased points.
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The range must include size 1.
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</para>
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</listitem>
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</varlistentry>
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<varlistentry>
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<term><constant>GL_ALPHA_BITS</constant></term>
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<listitem>
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<para>
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<parameter>params</parameter> returns one value,
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the number of alpha bitplanes in the color buffer of the
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currently bound framebuffer.
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</para>
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</listitem>
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</varlistentry>
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<varlistentry>
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<term><constant>GL_ARRAY_BUFFER_BINDING</constant></term>
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<listitem>
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<para>
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<parameter>params</parameter> returns a single value, the name of the buffer object
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currently bound to the target <constant>GL_ARRAY_BUFFER</constant>. If no buffer object
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is bound to this target, 0 is returned. The initial value is 0.
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See <citerefentry><refentrytitle>glBindBuffer</refentrytitle></citerefentry>.
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</para>
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</listitem>
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</varlistentry>
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<varlistentry>
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<term><constant>GL_BLEND</constant></term>
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<listitem>
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<para>
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<parameter>params</parameter> returns a single boolean value indicating whether blending is
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enabled. The initial value is <constant>GL_FALSE</constant>.
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See <citerefentry><refentrytitle>glBlendFunc</refentrytitle></citerefentry>.
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</para>
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</listitem>
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</varlistentry>
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<varlistentry>
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<term><constant>GL_BLEND_COLOR</constant></term>
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<listitem>
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<para>
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<parameter>params</parameter> returns four values,
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the red, green, blue, and alpha values which are the components of
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the blend color.
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See <citerefentry><refentrytitle>glBlendColor</refentrytitle></citerefentry>.
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</para>
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</listitem>
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</varlistentry>
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<varlistentry>
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<term><constant>GL_BLEND_DST_ALPHA</constant></term>
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<listitem>
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<para>
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<parameter>params</parameter> returns one value,
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the symbolic constant identifying the alpha destination blend
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function. The initial value is <constant>GL_ZERO</constant>.
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See <citerefentry><refentrytitle>glBlendFunc</refentrytitle></citerefentry> and <citerefentry><refentrytitle>glBlendFuncSeparate</refentrytitle></citerefentry>.
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</para>
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</listitem>
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</varlistentry>
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<varlistentry>
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<term><constant>GL_BLEND_DST_RGB</constant></term>
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<listitem>
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<para>
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<parameter>params</parameter> returns one value,
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the symbolic constant identifying the RGB destination blend
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function. The initial value is <constant>GL_ZERO</constant>.
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See <citerefentry><refentrytitle>glBlendFunc</refentrytitle></citerefentry> and <citerefentry><refentrytitle>glBlendFuncSeparate</refentrytitle></citerefentry>.
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</para>
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</listitem>
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</varlistentry>
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<varlistentry>
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<term><constant>GL_BLEND_EQUATION_ALPHA</constant></term>
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<listitem>
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<para>
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<parameter>params</parameter> returns one value, a symbolic constant indicating whether
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the Alpha blend equation is <constant>GL_FUNC_ADD</constant>, <constant>GL_FUNC_SUBTRACT</constant>, or
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<constant>GL_FUNC_REVERSE_SUBTRACT</constant>.
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See <citerefentry><refentrytitle>glBlendEquationSeparate</refentrytitle></citerefentry>.
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</para>
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</listitem>
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</varlistentry>
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<varlistentry>
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<term><constant>GL_BLEND_EQUATION_RGB</constant></term>
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<listitem>
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<para>
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<parameter>params</parameter> returns one value, a symbolic constant indicating whether
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the RGB blend equation is <constant>GL_FUNC_ADD</constant>, <constant>GL_FUNC_SUBTRACT</constant>, or
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<constant>GL_FUNC_REVERSE_SUBTRACT</constant>.
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See <citerefentry><refentrytitle>glBlendEquationSeparate</refentrytitle></citerefentry>.
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</para>
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</listitem>
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</varlistentry>
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<varlistentry>
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<term><constant>GL_BLEND_SRC_ALPHA</constant></term>
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<listitem>
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<para>
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<parameter>params</parameter> returns one value,
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the symbolic constant identifying the alpha source blend function. The initial
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value is <constant>GL_ONE</constant>.
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See <citerefentry><refentrytitle>glBlendFunc</refentrytitle></citerefentry> and <citerefentry><refentrytitle>glBlendFuncSeparate</refentrytitle></citerefentry>.
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</para>
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</listitem>
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</varlistentry>
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<varlistentry>
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<term><constant>GL_BLEND_SRC_RGB</constant></term>
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<listitem>
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<para>
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<parameter>params</parameter> returns one value,
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the symbolic constant identifying the RGB source blend function. The initial
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value is <constant>GL_ONE</constant>.
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See <citerefentry><refentrytitle>glBlendFunc</refentrytitle></citerefentry> and <citerefentry><refentrytitle>glBlendFuncSeparate</refentrytitle></citerefentry>.
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</para>
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</listitem>
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</varlistentry>
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<varlistentry>
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<term><constant>GL_BLUE_BITS</constant></term>
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<listitem>
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<para>
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<parameter>params</parameter> returns one value,
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the number of blue bitplanes in the color buffer of the
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currently bound framebuffer.
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</para>
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</listitem>
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</varlistentry>
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<varlistentry>
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<term><constant>GL_COLOR_CLEAR_VALUE</constant></term>
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<listitem>
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<para>
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<parameter>params</parameter> returns four values:
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the red, green, blue, and alpha values used to clear the color buffers.
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Integer values,
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if requested,
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are linearly mapped from the internal floating-point representation such
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that 1.0 returns the most positive representable integer value,
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and
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<inlineequation><mml:math>
|
|
<!-- eqn: -1.0:-->
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<mml:mn>-1.0</mml:mn>
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</mml:math></inlineequation>
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returns the most negative representable integer
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value. The initial value is (0, 0, 0, 0).
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See <citerefentry><refentrytitle>glClearColor</refentrytitle></citerefentry>.
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</para>
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</listitem>
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</varlistentry>
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<varlistentry>
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<term><constant>GL_COLOR_WRITEMASK</constant></term>
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<listitem>
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<para>
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<parameter>params</parameter> returns four boolean values:
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the red, green, blue, and alpha write enables for the color
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buffers. The initial value is (<constant>GL_TRUE</constant>, <constant>GL_TRUE</constant>,
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<constant>GL_TRUE</constant>, <constant>GL_TRUE</constant>).
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See <citerefentry><refentrytitle>glColorMask</refentrytitle></citerefentry>.
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</para>
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</listitem>
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</varlistentry>
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<varlistentry>
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<term><constant>GL_COMPRESSED_TEXTURE_FORMATS</constant></term>
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<listitem>
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<para>
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<parameter>params</parameter> returns a list of symbolic
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constants of length <constant>GL_NUM_COMPRESSED_TEXTURE_FORMATS</constant>
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indicating which compressed texture formats are available.
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See <citerefentry><refentrytitle>glCompressedTexImage2D</refentrytitle></citerefentry>.
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</para>
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</listitem>
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</varlistentry>
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<varlistentry>
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<term><constant>GL_CULL_FACE</constant></term>
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<listitem>
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<para>
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<parameter>params</parameter> returns a single boolean value indicating whether polygon culling
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is enabled. The initial value is <constant>GL_FALSE</constant>.
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See <citerefentry><refentrytitle>glCullFace</refentrytitle></citerefentry>.
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</para>
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</listitem>
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</varlistentry>
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<varlistentry>
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<term><constant>GL_CULL_FACE_MODE</constant></term>
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<listitem>
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<para>
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<parameter>params</parameter> returns one value,
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a symbolic constant indicating which polygon faces are to be
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culled. The initial value is <constant>GL_BACK</constant>.
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See <citerefentry><refentrytitle>glCullFace</refentrytitle></citerefentry>.
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</para>
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</listitem>
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</varlistentry>
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<varlistentry>
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<term><constant>GL_CURRENT_PROGRAM</constant></term>
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<listitem>
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<para>
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<parameter>params</parameter> returns one value,
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the name of the program object that is currently active, or 0 if no program object is active.
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See <citerefentry><refentrytitle>glUseProgram</refentrytitle></citerefentry>.
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</para>
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</listitem>
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</varlistentry>
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<varlistentry>
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<term><constant>GL_DEPTH_BITS</constant></term>
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<listitem>
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<para>
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<parameter>params</parameter> returns one value,
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the number of bitplanes in the depth buffer of the
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currently bound framebuffer.
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</para>
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</listitem>
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</varlistentry>
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<varlistentry>
|
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<term><constant>GL_DEPTH_CLEAR_VALUE</constant></term>
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<listitem>
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<para>
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<parameter>params</parameter> returns one value,
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the value that is used to clear the depth buffer.
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|
Integer values,
|
|
if requested,
|
|
are linearly mapped from the internal floating-point representation such
|
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that 1.0 returns the most positive representable integer value,
|
|
and
|
|
<inlineequation><mml:math>
|
|
<!-- eqn: -1.0:-->
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<mml:mn>-1.0</mml:mn>
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</mml:math></inlineequation>
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returns the most negative representable integer
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value. The initial value is 1.
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See <citerefentry><refentrytitle>glClearDepthf</refentrytitle></citerefentry>.
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</para>
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</listitem>
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</varlistentry>
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<varlistentry>
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<term><constant>GL_DEPTH_FUNC</constant></term>
|
|
<listitem>
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<para>
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<parameter>params</parameter> returns one value,
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the symbolic constant that indicates the depth comparison
|
|
function. The initial value is <constant>GL_LESS</constant>.
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See <citerefentry><refentrytitle>glDepthFunc</refentrytitle></citerefentry>.
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</para>
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</listitem>
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</varlistentry>
|
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<varlistentry>
|
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<term><constant>GL_DEPTH_RANGE</constant></term>
|
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<listitem>
|
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<para>
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<parameter>params</parameter> returns two values:
|
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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
|
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value. The initial value is (0, 1).
|
|
See <citerefentry><refentrytitle>glDepthRangef</refentrytitle></citerefentry>.
|
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</para>
|
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</listitem>
|
|
</varlistentry>
|
|
<varlistentry>
|
|
<term><constant>GL_DEPTH_TEST</constant></term>
|
|
<listitem>
|
|
<para>
|
|
<parameter>params</parameter> returns a single boolean value indicating whether depth testing
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|
of fragments is enabled. The initial value is <constant>GL_FALSE</constant>.
|
|
See <citerefentry><refentrytitle>glDepthFunc</refentrytitle></citerefentry> and <citerefentry><refentrytitle>glDepthRangef</refentrytitle></citerefentry>.
|
|
</para>
|
|
</listitem>
|
|
</varlistentry>
|
|
<varlistentry>
|
|
<term><constant>GL_DEPTH_WRITEMASK</constant></term>
|
|
<listitem>
|
|
<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>
|
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</listitem>
|
|
</varlistentry>
|
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<varlistentry>
|
|
<term><constant>GL_DITHER</constant></term>
|
|
<listitem>
|
|
<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_ELEMENT_ARRAY_BUFFER_BINDING</constant></term>
|
|
<listitem>
|
|
<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_FRAMEBUFFER_BINDING</constant></term>
|
|
<listitem>
|
|
<para>
|
|
<parameter>params</parameter> returns a single value, the name of the currently bound
|
|
framebuffer. The initial value is 0, indicating the default framebuffer.
|
|
See <citerefentry><refentrytitle>glBindFramebuffer</refentrytitle></citerefentry>.
|
|
</para>
|
|
</listitem>
|
|
</varlistentry>
|
|
<varlistentry>
|
|
<term><constant>GL_FRONT_FACE</constant></term>
|
|
<listitem>
|
|
<para>
|
|
<parameter>params</parameter> returns one value,
|
|
a symbolic constant indicating whether clockwise or counterclockwise
|
|
polygon winding is treated as front-facing. The initial value is
|
|
<constant>GL_CCW</constant>.
|
|
See <citerefentry><refentrytitle>glFrontFace</refentrytitle></citerefentry>.
|
|
</para>
|
|
</listitem>
|
|
</varlistentry>
|
|
<varlistentry>
|
|
<term><constant>GL_GENERATE_MIPMAP_HINT</constant></term>
|
|
<listitem>
|
|
<para>
|
|
<parameter>params</parameter> returns one value,
|
|
a symbolic constant indicating the mode of the mipmap generation filtering
|
|
hint. The initial value is <constant>GL_DONT_CARE</constant>.
|
|
See <citerefentry><refentrytitle>glHint</refentrytitle></citerefentry>.
|
|
</para>
|
|
</listitem>
|
|
</varlistentry>
|
|
<varlistentry>
|
|
<term><constant>GL_GREEN_BITS</constant></term>
|
|
<listitem>
|
|
<para>
|
|
<parameter>params</parameter> returns one value,
|
|
the number of green bitplanes in the color buffer of the
|
|
currently bound framebuffer.
|
|
</para>
|
|
</listitem>
|
|
</varlistentry>
|
|
<varlistentry>
|
|
<term><constant>GL_IMPLEMENTATION_COLOR_READ_FORMAT</constant></term>
|
|
<listitem>
|
|
<para>
|
|
<parameter>params</parameter> returns one value, the format
|
|
chosen by the implementation in which pixels may be read from the
|
|
color buffer of the currently bound framebuffer in conjunction with
|
|
<constant>GL_IMPLEMENTATION_COLOR_READ_TYPE</constant>.
|
|
In addition
|
|
to this implementation-dependent format/type pair, format
|
|
<constant>GL_RGBA</constant> in conjunction with type
|
|
<constant>GL_UNSIGNED_BYTE</constant> is always allowed by every
|
|
implementation, regardless of the currently bound render surface.
|
|
See <citerefentry><refentrytitle>glReadPixels</refentrytitle></citerefentry>.
|
|
</para>
|
|
</listitem>
|
|
</varlistentry>
|
|
<varlistentry>
|
|
<term><constant>GL_IMPLEMENTATION_COLOR_READ_TYPE</constant></term>
|
|
<listitem>
|
|
<para>
|
|
<parameter>params</parameter> returns one value, the type
|
|
chosen by the implementation with which pixels may be read from the
|
|
color buffer of the currently bound framebuffer in conjunction with
|
|
<constant>GL_IMPLEMENTATION_COLOR_READ_FORMAT</constant>.
|
|
In addition
|
|
to this implementation-dependent format/type pair, format
|
|
<constant>GL_RGBA</constant> in conjunction with type
|
|
<constant>GL_UNSIGNED_BYTE</constant> is always allowed by every
|
|
implementation, regardless of the currently bound render surface.
|
|
See <citerefentry><refentrytitle>glReadPixels</refentrytitle></citerefentry>.
|
|
</para>
|
|
</listitem>
|
|
</varlistentry>
|
|
<varlistentry>
|
|
<term><constant>GL_LINE_WIDTH</constant></term>
|
|
<listitem>
|
|
<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_MAX_COMBINED_TEXTURE_IMAGE_UNITS</constant></term>
|
|
<listitem>
|
|
<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 8.
|
|
See <citerefentry><refentrytitle>glActiveTexture</refentrytitle></citerefentry>.
|
|
</para>
|
|
</listitem>
|
|
</varlistentry>
|
|
<varlistentry>
|
|
<term><constant>GL_MAX_CUBE_MAP_TEXTURE_SIZE</constant></term>
|
|
<listitem>
|
|
<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 16.
|
|
See <citerefentry><refentrytitle>glTexImage2D</refentrytitle></citerefentry>.
|
|
</para>
|
|
</listitem>
|
|
</varlistentry>
|
|
<varlistentry>
|
|
<term><constant>GL_MAX_FRAGMENT_UNIFORM_VECTORS</constant></term>
|
|
<listitem>
|
|
<para>
|
|
<parameter>params</parameter> returns one value,
|
|
the maximum number of four-element floating-point, integer, or boolean vectors that can be held
|
|
in uniform variable storage for a fragment shader. The value must be at least 16.
|
|
See <citerefentry><refentrytitle>glUniform</refentrytitle></citerefentry>.
|
|
</para>
|
|
</listitem>
|
|
</varlistentry>
|
|
<varlistentry>
|
|
<term><constant>GL_MAX_RENDERBUFFER_SIZE</constant></term>
|
|
<listitem>
|
|
<para>
|
|
<parameter>params</parameter> returns one value.
|
|
The value indicates the largest renderbuffer width and height
|
|
that the GL can handle. The value must be at least 1.
|
|
See <citerefentry><refentrytitle>glRenderbufferStorage</refentrytitle></citerefentry>.
|
|
</para>
|
|
</listitem>
|
|
</varlistentry>
|
|
<varlistentry>
|
|
<term><constant>GL_MAX_TEXTURE_IMAGE_UNITS</constant></term>
|
|
<listitem>
|
|
<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 8.
|
|
See <citerefentry><refentrytitle>glActiveTexture</refentrytitle></citerefentry>.
|
|
</para>
|
|
</listitem>
|
|
</varlistentry>
|
|
<varlistentry>
|
|
<term><constant>GL_MAX_TEXTURE_SIZE</constant></term>
|
|
<listitem>
|
|
<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 64.
|
|
See <citerefentry><refentrytitle>glTexImage2D</refentrytitle></citerefentry>.
|
|
</para>
|
|
</listitem>
|
|
</varlistentry>
|
|
<varlistentry>
|
|
<term><constant>GL_MAX_VARYING_VECTORS</constant></term>
|
|
<listitem>
|
|
<para>
|
|
<parameter>params</parameter> returns one value,
|
|
the maximum number four-element floating-point vectors available for interpolating varying variables used by
|
|
vertex and fragment shaders. Varying variables declared as matrices or arrays
|
|
will consume multiple interpolators. The value must be at least 8.
|
|
</para>
|
|
</listitem>
|
|
</varlistentry>
|
|
<varlistentry>
|
|
<term><constant>GL_MAX_VERTEX_ATTRIBS</constant></term>
|
|
<listitem>
|
|
<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 8.
|
|
See <citerefentry><refentrytitle>glVertexAttrib</refentrytitle></citerefentry>.
|
|
</para>
|
|
</listitem>
|
|
</varlistentry>
|
|
<varlistentry>
|
|
<term><constant>GL_MAX_VERTEX_TEXTURE_IMAGE_UNITS</constant></term>
|
|
<listitem>
|
|
<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 0.
|
|
See <citerefentry><refentrytitle>glActiveTexture</refentrytitle></citerefentry>.
|
|
</para>
|
|
</listitem>
|
|
</varlistentry>
|
|
<varlistentry>
|
|
<term><constant>GL_MAX_VERTEX_UNIFORM_VECTORS</constant></term>
|
|
<listitem>
|
|
<para>
|
|
<parameter>params</parameter> returns one value,
|
|
the maximum number of four-element floating-point, integer, or boolean vectors that can be held
|
|
in uniform variable storage for a vertex shader. The value must be at least 128.
|
|
See <citerefentry><refentrytitle>glUniform</refentrytitle></citerefentry>.
|
|
</para>
|
|
</listitem>
|
|
</varlistentry>
|
|
<varlistentry>
|
|
<term><constant>GL_MAX_VIEWPORT_DIMS</constant></term>
|
|
<listitem>
|
|
<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>
|
|
<parameter>params</parameter> returns a single integer value indicating the number of available
|
|
compressed texture formats. The minimum value is 0.
|
|
See <citerefentry><refentrytitle>glCompressedTexImage2D</refentrytitle></citerefentry>.
|
|
</para>
|
|
</listitem>
|
|
</varlistentry>
|
|
<varlistentry>
|
|
<term><constant>GL_NUM_SHADER_BINARY_FORMATS</constant></term>
|
|
<listitem>
|
|
<para>
|
|
<parameter>params</parameter> returns a single integer value indicating the number of available
|
|
shader binary formats. The minimum value is 0.
|
|
See <citerefentry><refentrytitle>glShaderBinary</refentrytitle></citerefentry>.
|
|
</para>
|
|
</listitem>
|
|
</varlistentry>
|
|
<varlistentry>
|
|
<term><constant>GL_PACK_ALIGNMENT</constant></term>
|
|
<listitem>
|
|
<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>glPixelStorei</refentrytitle></citerefentry>.
|
|
</para>
|
|
</listitem>
|
|
</varlistentry>
|
|
<varlistentry>
|
|
<term><constant>GL_POLYGON_OFFSET_FACTOR</constant></term>
|
|
<listitem>
|
|
<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_FILL</constant></term>
|
|
<listitem>
|
|
<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_UNITS</constant></term>
|
|
<listitem>
|
|
<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_RED_BITS</constant></term>
|
|
<listitem>
|
|
<para>
|
|
<parameter>params</parameter> returns one value,
|
|
the number of red bitplanes in the color buffer of the
|
|
currently bound framebuffer.
|
|
</para>
|
|
</listitem>
|
|
</varlistentry>
|
|
<varlistentry>
|
|
<term><constant>GL_RENDERBUFFER_BINDING</constant></term>
|
|
<listitem>
|
|
<para>
|
|
<parameter>params</parameter> returns a single value, the name of the currently bound
|
|
renderbuffer. The initial value is 0, indicating no renderbuffer is bound.
|
|
See <citerefentry><refentrytitle>glBindRenderbuffer</refentrytitle></citerefentry>.
|
|
</para>
|
|
</listitem>
|
|
</varlistentry>
|
|
<varlistentry>
|
|
<term><constant>GL_SAMPLE_ALPHA_TO_COVERAGE</constant></term>
|
|
<listitem>
|
|
<para>
|
|
<parameter>params</parameter> returns a single boolean value indicating if the
|
|
fragment coverage value should be ANDed with a temporary coverage value based
|
|
on the fragment's alpha value. The initial value is <constant>GL_FALSE</constant>.
|
|
See <citerefentry><refentrytitle>glSampleCoverage</refentrytitle></citerefentry>.
|
|
</para>
|
|
</listitem>
|
|
</varlistentry>
|
|
<varlistentry>
|
|
<term><constant>GL_SAMPLE_BUFFERS</constant></term>
|
|
<listitem>
|
|
<para>
|
|
<parameter>params</parameter> returns a single integer value indicating the number of sample buffers
|
|
associated with the currently bound framebuffer.
|
|
See <citerefentry><refentrytitle>glSampleCoverage</refentrytitle></citerefentry>.
|
|
</para>
|
|
</listitem>
|
|
</varlistentry>
|
|
<varlistentry>
|
|
<term><constant>GL_SAMPLE_COVERAGE</constant></term>
|
|
<listitem>
|
|
<para>
|
|
<parameter>params</parameter> returns a single boolean value indicating if the
|
|
fragment coverage value should be ANDed with a temporary coverage value based
|
|
on the current sample coverage value. The initial value is <constant>GL_FALSE</constant>.
|
|
See <citerefentry><refentrytitle>glSampleCoverage</refentrytitle></citerefentry>.
|
|
</para>
|
|
</listitem>
|
|
</varlistentry>
|
|
<varlistentry>
|
|
<term><constant>GL_SAMPLE_COVERAGE_INVERT</constant></term>
|
|
<listitem>
|
|
<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_SAMPLE_COVERAGE_VALUE</constant></term>
|
|
<listitem>
|
|
<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_SAMPLES</constant></term>
|
|
<listitem>
|
|
<para>
|
|
<parameter>params</parameter> returns a single integer value
|
|
indicating the coverage mask size of the currently bound framebuffer.
|
|
See <citerefentry><refentrytitle>glSampleCoverage</refentrytitle></citerefentry>.
|
|
</para>
|
|
</listitem>
|
|
</varlistentry>
|
|
<varlistentry>
|
|
<term><constant>GL_SCISSOR_BOX</constant></term>
|
|
<listitem>
|
|
<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>
|
|
<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_SHADER_BINARY_FORMATS</constant></term>
|
|
<listitem>
|
|
<para>
|
|
<parameter>params</parameter> returns a list of symbolic
|
|
constants of length <constant>GL_NUM_SHADER_BINARY_FORMATS</constant>
|
|
indicating which shader binary formats are available.
|
|
See <citerefentry><refentrytitle>glShaderBinary</refentrytitle></citerefentry>.
|
|
</para>
|
|
</listitem>
|
|
</varlistentry>
|
|
<varlistentry>
|
|
<term><constant>GL_SHADER_COMPILER</constant></term>
|
|
<listitem>
|
|
<para>
|
|
<parameter>params</parameter> returns a single boolean value indicating whether a shader compiler
|
|
is supported. <constant>GL_FALSE</constant> indicates that any call to
|
|
<citerefentry><refentrytitle>glShaderSource</refentrytitle></citerefentry>,
|
|
<citerefentry><refentrytitle>glCompileShader</refentrytitle></citerefentry>, or
|
|
<citerefentry><refentrytitle>glReleaseShaderCompiler</refentrytitle></citerefentry> will result in a
|
|
<constant>GL_INVALID_OPERATION</constant> error being generated.
|
|
</para>
|
|
</listitem>
|
|
</varlistentry>
|
|
<varlistentry>
|
|
<term><constant>GL_STENCIL_BACK_FAIL</constant></term>
|
|
<listitem>
|
|
<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>
|
|
<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>
|
|
<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>
|
|
<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>
|
|
<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>
|
|
<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>
|
|
<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_BITS</constant></term>
|
|
<listitem>
|
|
<para>
|
|
<parameter>params</parameter> returns one value,
|
|
the number of bitplanes in the stencil buffer of the
|
|
currently bound framebuffer.
|
|
</para>
|
|
</listitem>
|
|
</varlistentry>
|
|
<varlistentry>
|
|
<term><constant>GL_STENCIL_CLEAR_VALUE</constant></term>
|
|
<listitem>
|
|
<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>
|
|
<parameter>params</parameter> returns one value,
|
|
a symbolic constant indicating what action is taken when the stencil
|
|
test fails for front-facing polygons and non-polygons.
|
|
The initial value is <constant>GL_KEEP</constant>.
|
|
See <citerefentry><refentrytitle>glStencilOp</refentrytitle></citerefentry> and
|
|
<citerefentry><refentrytitle>glStencilOpSeparate</refentrytitle></citerefentry>.
|
|
</para>
|
|
</listitem>
|
|
</varlistentry>
|
|
<varlistentry>
|
|
<term><constant>GL_STENCIL_FUNC</constant></term>
|
|
<listitem>
|
|
<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 for front-facing polygons and non-polygons.
|
|
The initial value is <constant>GL_ALWAYS</constant>.
|
|
See <citerefentry><refentrytitle>glStencilFunc</refentrytitle></citerefentry> and
|
|
<citerefentry><refentrytitle>glStencilFuncSeparate</refentrytitle></citerefentry>.
|
|
</para>
|
|
</listitem>
|
|
</varlistentry>
|
|
<varlistentry>
|
|
<term><constant>GL_STENCIL_PASS_DEPTH_FAIL</constant></term>
|
|
<listitem>
|
|
<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 for front-facing polygons and non-polygons.
|
|
The initial value is <constant>GL_KEEP</constant>.
|
|
See <citerefentry><refentrytitle>glStencilOp</refentrytitle></citerefentry> and
|
|
<citerefentry><refentrytitle>glStencilOpSeparate</refentrytitle></citerefentry>.
|
|
</para>
|
|
</listitem>
|
|
</varlistentry>
|
|
<varlistentry>
|
|
<term><constant>GL_STENCIL_PASS_DEPTH_PASS</constant></term>
|
|
<listitem>
|
|
<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 for front-facing polygons and non-polygons.
|
|
The initial value is <constant>GL_KEEP</constant>.
|
|
See <citerefentry><refentrytitle>glStencilOp</refentrytitle></citerefentry> and
|
|
<citerefentry><refentrytitle>glStencilOpSeparate</refentrytitle></citerefentry>.
|
|
</para>
|
|
</listitem>
|
|
</varlistentry>
|
|
<varlistentry>
|
|
<term><constant>GL_STENCIL_REF</constant></term>
|
|
<listitem>
|
|
<para>
|
|
<parameter>params</parameter> returns one value,
|
|
the reference value that is compared with the contents of the stencil
|
|
buffer for front-facing polygons and non-polygons.
|
|
The initial value is 0.
|
|
See <citerefentry><refentrytitle>glStencilFunc</refentrytitle></citerefentry> and
|
|
<citerefentry><refentrytitle>glStencilFuncSeparate</refentrytitle></citerefentry>.
|
|
</para>
|
|
</listitem>
|
|
</varlistentry>
|
|
<varlistentry>
|
|
<term><constant>GL_STENCIL_TEST</constant></term>
|
|
<listitem>
|
|
<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>
|
|
<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 for front-facing polygons and non-polygons.
|
|
The initial value is all 1's.
|
|
See <citerefentry><refentrytitle>glStencilFunc</refentrytitle></citerefentry> and
|
|
<citerefentry><refentrytitle>glStencilFuncSeparate</refentrytitle></citerefentry>.
|
|
</para>
|
|
</listitem>
|
|
</varlistentry>
|
|
<varlistentry>
|
|
<term><constant>GL_STENCIL_WRITEMASK</constant></term>
|
|
<listitem>
|
|
<para>
|
|
<parameter>params</parameter> returns one value,
|
|
the mask that controls writing of the stencil bitplanes for front-facing polygons and non-polygons.
|
|
The initial value is all 1's.
|
|
See <citerefentry><refentrytitle>glStencilMask</refentrytitle></citerefentry> and
|
|
<citerefentry><refentrytitle>glStencilMaskSeparate</refentrytitle></citerefentry>.
|
|
</para>
|
|
</listitem>
|
|
</varlistentry>
|
|
<varlistentry>
|
|
<term><constant>GL_SUBPIXEL_BITS</constant></term>
|
|
<listitem>
|
|
<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_2D</constant></term>
|
|
<listitem>
|
|
<para>
|
|
<parameter>params</parameter> returns a single value, the name of the texture
|
|
currently bound to the target <constant>GL_TEXTURE_2D</constant> for the active multitexture unit. 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>
|
|
<parameter>params</parameter> returns a single value, the name of the texture
|
|
currently bound to the target <constant>GL_TEXTURE_CUBE_MAP</constant> for the active multitexture unit. The initial value is 0.
|
|
See <citerefentry><refentrytitle>glBindTexture</refentrytitle></citerefentry>.
|
|
</para>
|
|
</listitem>
|
|
</varlistentry>
|
|
<varlistentry>
|
|
<term><constant>GL_UNPACK_ALIGNMENT</constant></term>
|
|
<listitem>
|
|
<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>glPixelStorei</refentrytitle></citerefentry>.
|
|
</para>
|
|
</listitem>
|
|
</varlistentry>
|
|
<varlistentry>
|
|
<term><constant>GL_VIEWPORT</constant></term>
|
|
<listitem>
|
|
<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="errors"><title>Errors</title>
|
|
<para>
|
|
<constant>GL_INVALID_ENUM</constant> is generated if <parameter>pname</parameter>
|
|
is not one of the values listed previously.
|
|
</para>
|
|
</refsect1>
|
|
<refsect1 id="seealso"><title>See Also</title>
|
|
<para>
|
|
<citerefentry><refentrytitle>glGetActiveAttrib</refentrytitle></citerefentry>,
|
|
<citerefentry><refentrytitle>glGetActiveUniform</refentrytitle></citerefentry>,
|
|
<citerefentry><refentrytitle>glGetAttachedShaders</refentrytitle></citerefentry>,
|
|
<citerefentry><refentrytitle>glGetAttribLocation</refentrytitle></citerefentry>,
|
|
<citerefentry><refentrytitle>glGetBufferParameteriv</refentrytitle></citerefentry>,
|
|
<citerefentry><refentrytitle>glGetError</refentrytitle></citerefentry>,
|
|
<citerefentry><refentrytitle>glGetFramebufferAttachmentParameteriv</refentrytitle></citerefentry>,
|
|
<citerefentry><refentrytitle>glGetProgramiv</refentrytitle></citerefentry>,
|
|
<citerefentry><refentrytitle>glGetProgramInfoLog</refentrytitle></citerefentry>,
|
|
<citerefentry><refentrytitle>glGetRenderbufferParameteriv</refentrytitle></citerefentry>,
|
|
<citerefentry><refentrytitle>glGetShaderiv</refentrytitle></citerefentry>,
|
|
<citerefentry><refentrytitle>glGetShaderInfoLog</refentrytitle></citerefentry>,
|
|
<citerefentry><refentrytitle>glGetShaderSource</refentrytitle></citerefentry>,
|
|
<citerefentry><refentrytitle>glGetString</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>
|