mirror of
https://github.com/Ryujinx/Opentk.git
synced 2024-12-27 18:25:39 +00:00
173 lines
8.8 KiB
XML
173 lines
8.8 KiB
XML
<!DOCTYPE refentry [ <!ENTITY % mathent SYSTEM "math.ent"> %mathent; ]>
|
|
|
|
<!-- Converted by db4-upgrade version 1.1 -->
|
|
|
|
<refentry xmlns="http://docbook.org/ns/docbook" version="5.0" xml:id="glClearTexImage">
|
|
<info>
|
|
<copyright>
|
|
<year>2013</year>
|
|
<holder>Khronos Group</holder>
|
|
</copyright>
|
|
</info>
|
|
<refmeta>
|
|
<refentrytitle>glClearTexImage</refentrytitle>
|
|
<manvolnum>3G</manvolnum>
|
|
</refmeta>
|
|
<refnamediv>
|
|
<refname>glClearTexImage</refname>
|
|
<refpurpose>fills all a texture image with a constant value</refpurpose>
|
|
</refnamediv>
|
|
<refsynopsisdiv><title>C Specification</title>
|
|
<funcsynopsis>
|
|
<funcprototype>
|
|
<funcdef>void <function>glClearTexImage</function></funcdef>
|
|
<paramdef>GLuint <parameter>texture</parameter></paramdef>
|
|
<paramdef>GLint <parameter>level</parameter></paramdef>
|
|
<paramdef>GLenum <parameter>format</parameter></paramdef>
|
|
<paramdef>GLenum <parameter>type</parameter></paramdef>
|
|
<paramdef>const void * <parameter>data</parameter></paramdef>
|
|
</funcprototype>
|
|
</funcsynopsis>
|
|
</refsynopsisdiv>
|
|
<refsect1 xml:id="parameters"><title>Parameters</title>
|
|
<variablelist>
|
|
<varlistentry>
|
|
<term><parameter>texture</parameter></term>
|
|
<listitem>
|
|
<para>
|
|
The name of an existing texture object containing the image to be cleared.
|
|
</para>
|
|
</listitem>
|
|
</varlistentry>
|
|
<varlistentry>
|
|
<term><parameter>level</parameter></term>
|
|
<listitem>
|
|
<para>
|
|
The level of <parameter>texture</parameter> containing the region to be cleared.
|
|
</para>
|
|
</listitem>
|
|
</varlistentry>
|
|
<varlistentry>
|
|
<term><parameter>format</parameter></term>
|
|
<listitem>
|
|
<para>
|
|
The format of the data whose address in memory is given by <parameter>data</parameter>.
|
|
</para>
|
|
</listitem>
|
|
</varlistentry>
|
|
<varlistentry>
|
|
<term><parameter>type</parameter></term>
|
|
<listitem>
|
|
<para>
|
|
The type of the data whose address in memory is given by <parameter>data</parameter>.
|
|
</para>
|
|
</listitem>
|
|
</varlistentry>
|
|
<varlistentry>
|
|
<term><parameter>data</parameter></term>
|
|
<listitem>
|
|
<para>
|
|
The address in memory of the data to be used to clear the specified region.
|
|
</para>
|
|
</listitem>
|
|
</varlistentry>
|
|
</variablelist>
|
|
</refsect1>
|
|
<refsect1 xml:id="description"><title>Description</title>
|
|
<para>
|
|
<function>glClearTexImage</function> fills all an image contained in a
|
|
texture with an application supplied value. <parameter>texture</parameter> must be
|
|
the name of an existing texture. Further, <parameter>texture</parameter> may not be
|
|
the name of a buffer texture, nor may its internal format be compressed.
|
|
</para>
|
|
<para>
|
|
<parameter>format</parameter> and <parameter>type</parameter> specify the format and type of the
|
|
source data and are interpreted as they are for <citerefentry><refentrytitle>glTexImage3D</refentrytitle></citerefentry>.
|
|
Textures with a base internal format of <constant>GL_DEPTH_COMPONENT</constant>, <constant>GL_STENCIL_INDEX</constant>, or <constant>GL_DEPTH_STENCIL</constant>
|
|
require depth component, stencil, or depth-stencil component data respectively.
|
|
Textures with other base internal formats require RGBA formats. Textures with integer
|
|
internal formats require integer data.
|
|
</para>
|
|
<para>
|
|
<parameter>data</parameter> is a pointer to an array of between one and four components of texel
|
|
data that will be used as the source for the constant fill value. The elements of
|
|
data are converted by the GL into the internal format of the texture image (that
|
|
was specified when the level was defined by any of the <function>glTexImage*</function>, <function>glTexStorage*</function>
|
|
or <function>glCopyTexImage*</function> commands), and then
|
|
used to fill the specified range of the destination texture level. If <parameter>data</parameter> is <constant>NULL</constant>, then
|
|
the pointer is ignored and the sub-range of the texture image is filled with zeros. If
|
|
texture is a multisample texture, all the samples in a texel are cleared to the value
|
|
specified by data.
|
|
</para>
|
|
</refsect1>
|
|
<refsect1 xml:id="notes"><title>Notes</title>
|
|
<para>
|
|
<function>glClearTexImage</function> is available only if the GL version is 4.4 or greater.
|
|
</para>
|
|
</refsect1>
|
|
<refsect1 xml:id="errors"><title>Errors</title>
|
|
<para>
|
|
<constant>GL_INVALID_OPERATION</constant> is generated if <parameter>texture</parameter> is zero or not the
|
|
name of an existing texture object.
|
|
</para>
|
|
<para>
|
|
<constant>GL_INVALID_OPERATION</constant> is generated if <parameter>texture</parameter> is a buffer texture.
|
|
</para>
|
|
<para>
|
|
<constant>GL_INVALID_OPERATION</constant> is generated if <parameter>texture</parameter> has a compressed
|
|
internal format.
|
|
</para>
|
|
<para>
|
|
<constant>GL_INVALID_OPERATION</constant> is generated if the base internal format is
|
|
<constant>GL_DEPTH_COMPONENT</constant> and <parameter>format</parameter> is not <constant>GL_DEPTH_COMPONENT</constant>.
|
|
</para>
|
|
<para>
|
|
<constant>GL_INVALID_OPERATION</constant> is generated if the base internal format is
|
|
<constant>GL_DEPTH_STENCIL</constant> and <parameter>format</parameter> is not <constant>GL_DEPTH_STENCIL</constant>.
|
|
</para>
|
|
<para>
|
|
<constant>GL_INVALID_OPERATION</constant> is generated if the base internal format is
|
|
<constant>GL_STENCIL_INDEX</constant> and <parameter>format</parameter> is not <constant>GL_STENCIL_INDEX</constant>.
|
|
</para>
|
|
<para>
|
|
<constant>GL_INVALID_OPERATION</constant> is generated if the base internal format is
|
|
<constant>GL_RGBA</constant> and <parameter>format</parameter> is <constant>GL_DEPTH_COMPONENT</constant>, <constant>GL_STENCIL_INDEX</constant>, or <constant>GL_DEPTH_STENCIL</constant>.
|
|
</para>
|
|
<para>
|
|
<constant>GL_INVALID_OPERATION</constant> is generated if the internal format is integer and <parameter>format</parameter> does not specify integer data.
|
|
</para>
|
|
<para>
|
|
<constant>GL_INVALID_OPERATION</constant> is generated if the internal format is not
|
|
integer and <parameter>format</parameter> specifies integer data.
|
|
</para>
|
|
<para>
|
|
<constant>GL_INVALID_OPERATION</constant> is generated if the image array identified by <parameter>level</parameter>
|
|
has not previously been defined by a call to <function>glTexImage*</function> or <function>glTexStorage*</function>.
|
|
</para>
|
|
</refsect1>
|
|
<refsect1 xml:id="associatedgets"><title>Associated Gets</title>
|
|
<para>
|
|
<citerefentry><refentrytitle>glGetTexImage</refentrytitle></citerefentry>, <citerefentry><refentrytitle>glGetInternalformat</refentrytitle></citerefentry>
|
|
</para>
|
|
</refsect1>
|
|
<refsect1 xml:id="seealso"><title>See Also</title>
|
|
<para>
|
|
<citerefentry><refentrytitle>glClearTexSubImage</refentrytitle></citerefentry>,
|
|
<citerefentry><refentrytitle>glTexStorage1D</refentrytitle></citerefentry>,
|
|
<citerefentry><refentrytitle>glTexStorage2D</refentrytitle></citerefentry>,
|
|
<citerefentry><refentrytitle>glTexStorage3D</refentrytitle></citerefentry>,
|
|
<citerefentry><refentrytitle>glTexImage1D</refentrytitle></citerefentry>,
|
|
<citerefentry><refentrytitle>glTexImage2D</refentrytitle></citerefentry>,
|
|
<citerefentry><refentrytitle>glTexImage3D</refentrytitle></citerefentry>
|
|
</para>
|
|
</refsect1>
|
|
<refsect1 xml:id="Copyright"><title>Copyright</title>
|
|
<para>
|
|
Copyright <trademark class="copyright"/> 2013 Khronos Group.
|
|
This material may be distributed subject to the terms and conditions set forth in
|
|
the Open Publication License, v 1.0, 8 June 1999.
|
|
<link xmlns:xlink="http://www.w3.org/1999/xlink" xlink:href="http://opencontent.org/openpub/">http://opencontent.org/openpub/</link>.
|
|
</para>
|
|
</refsect1>
|
|
</refentry>
|