mirror of
https://github.com/Ryujinx/Opentk.git
synced 2024-12-25 18:45:32 +00:00
236 lines
11 KiB
XML
236 lines
11 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="glCompressedTexImage3D">
|
|
<info>
|
|
<copyright>
|
|
<year>1991-2006</year>
|
|
<holder>Silicon Graphics, Inc.</holder>
|
|
</copyright>
|
|
<copyright>
|
|
<year>2010-2014</year>
|
|
<holder>Khronos Group</holder>
|
|
</copyright>
|
|
</info>
|
|
<refmeta>
|
|
<refentrytitle>glCompressedTexImage3D</refentrytitle>
|
|
<manvolnum>3G</manvolnum>
|
|
</refmeta>
|
|
<refnamediv>
|
|
<refname>glCompressedTexImage3D</refname>
|
|
<refpurpose>specify a three-dimensional texture image in a compressed format</refpurpose>
|
|
</refnamediv>
|
|
<refsynopsisdiv><title>C Specification</title>
|
|
<funcsynopsis>
|
|
<funcprototype>
|
|
<funcdef>void <function>glCompressedTexImage3D</function></funcdef>
|
|
<paramdef>GLenum <parameter>target</parameter></paramdef>
|
|
<paramdef>GLint <parameter>level</parameter></paramdef>
|
|
<paramdef>GLenum <parameter>internalformat</parameter></paramdef>
|
|
<paramdef>GLsizei <parameter>width</parameter></paramdef>
|
|
<paramdef>GLsizei <parameter>height</parameter></paramdef>
|
|
<paramdef>GLsizei <parameter>depth</parameter></paramdef>
|
|
<paramdef>GLint <parameter>border</parameter></paramdef>
|
|
<paramdef>GLsizei <parameter>imageSize</parameter></paramdef>
|
|
<paramdef>const GLvoid * <parameter>data</parameter></paramdef>
|
|
</funcprototype>
|
|
</funcsynopsis>
|
|
</refsynopsisdiv>
|
|
<refsect1 xml:id="parameters"><title>Parameters</title>
|
|
<variablelist>
|
|
<varlistentry>
|
|
<term><parameter>target</parameter></term>
|
|
<listitem>
|
|
<para>
|
|
Specifies the target texture.
|
|
Must be <constant>GL_TEXTURE_3D</constant>, or <constant>GL_TEXTURE_2D_ARRAY</constant>.
|
|
</para>
|
|
</listitem>
|
|
</varlistentry>
|
|
<varlistentry>
|
|
<term><parameter>level</parameter></term>
|
|
<listitem>
|
|
<para>
|
|
Specifies the level-of-detail number.
|
|
Level 0 is the base image level.
|
|
Level <emphasis>n</emphasis> is the <emphasis>n</emphasis>th mipmap reduction image.
|
|
</para>
|
|
</listitem>
|
|
</varlistentry>
|
|
<varlistentry>
|
|
<term><parameter>internalformat</parameter></term>
|
|
<listitem>
|
|
<para>
|
|
Specifies the format of the compressed image data stored at address <parameter>data</parameter>.
|
|
</para>
|
|
</listitem>
|
|
</varlistentry>
|
|
<varlistentry>
|
|
<term><parameter>width</parameter></term>
|
|
<listitem>
|
|
<para>
|
|
Specifies the width of the texture image.
|
|
</para>
|
|
</listitem>
|
|
</varlistentry>
|
|
<varlistentry>
|
|
<term><parameter>height</parameter></term>
|
|
<listitem>
|
|
<para>
|
|
Specifies the height of the texture image.
|
|
</para>
|
|
</listitem>
|
|
</varlistentry>
|
|
<varlistentry>
|
|
<term><parameter>depth</parameter></term>
|
|
<listitem>
|
|
<para>
|
|
Specifies the depth of the texture image.
|
|
</para>
|
|
</listitem>
|
|
</varlistentry>
|
|
<varlistentry>
|
|
<term><parameter>border</parameter></term>
|
|
<listitem>
|
|
<para>
|
|
This value must be 0.
|
|
</para>
|
|
</listitem>
|
|
</varlistentry>
|
|
<varlistentry>
|
|
<term><parameter>imageSize</parameter></term>
|
|
<listitem>
|
|
<para>
|
|
Specifies the number of unsigned bytes of image data starting at the
|
|
address specified by <parameter>data</parameter>.
|
|
</para>
|
|
</listitem>
|
|
</varlistentry>
|
|
<varlistentry>
|
|
<term><parameter>data</parameter></term>
|
|
<listitem>
|
|
<para>
|
|
Specifies a pointer to the compressed image data in memory.
|
|
</para>
|
|
</listitem>
|
|
</varlistentry>
|
|
</variablelist>
|
|
</refsect1>
|
|
<refsect1 xml:id="description"><title>Description</title>
|
|
<para>
|
|
Texturing allows elements of an image array to be read by shaders.
|
|
</para>
|
|
<para>
|
|
<function>glCompressedTexImage3D</function> loads a previously defined, and retrieved, compressed three-dimensional
|
|
texture image if <parameter>target</parameter> is <constant>GL_TEXTURE_3D</constant> (see <citerefentry><refentrytitle>glTexImage3D</refentrytitle></citerefentry>).
|
|
</para>
|
|
<para>
|
|
If <parameter>target</parameter> is <constant>GL_TEXTURE_2D_ARRAY</constant>, <parameter>data</parameter> is
|
|
treated as an array of compressed 2D textures.
|
|
</para>
|
|
<para>
|
|
<parameter>internalformat</parameter> must be a compressed image format from Table 1 below,
|
|
or an extension-specified compressed-texture format.
|
|
</para>
|
|
<para>
|
|
<parameter>imageSize</parameter> must be appropriate for the <parameter>width</parameter>, <parameter>height</parameter> and
|
|
<parameter>depth</parameter> of the <parameter>internalformat</parameter> specified. The size for a single slice of ETC/EAC
|
|
is given in Table 1 below.
|
|
</para>
|
|
<para>
|
|
If a non-zero named buffer object is bound to the <constant>GL_PIXEL_UNPACK_BUFFER</constant> target
|
|
(see <citerefentry><refentrytitle>glBindBuffer</refentrytitle></citerefentry>) while a texture image is
|
|
specified, <parameter>data</parameter> is treated as a byte offset into the buffer object's data store.
|
|
</para>
|
|
<para>
|
|
<xi:include xmlns:xi="http://www.w3.org/2001/XInclude" href="compressedformattable.xml"/>
|
|
</para>
|
|
</refsect1>
|
|
<refsect1 xml:id="errors"><title>Errors</title>
|
|
<para>
|
|
<constant>GL_INVALID_ENUM</constant> is generated if <parameter>internalformat</parameter> is not one of the specific
|
|
compressed internal formats:
|
|
<constant>GL_COMPRESSED_R11_EAC</constant>,
|
|
<constant>GL_COMPRESSED_SIGNED_R11_EAC</constant>,
|
|
<constant>GL_COMPRESSED_RG11_EAC</constant>,
|
|
<constant>GL_COMPRESSED_SIGNED_RG11_EAC</constant>,
|
|
<constant>GL_COMPRESSED_RGB8_ETC2</constant>,
|
|
<constant>GL_COMPRESSED_SRGB8_ETC2</constant>,
|
|
<constant>GL_COMPRESSED_RGB8_PUNCHTHROUGH_ALPHA1_ETC2</constant>,
|
|
<constant>GL_COMPRESSED_SRGB8_PUNCHTHROUGH_ALPHA1_ETC2</constant>,
|
|
<constant>GL_COMPRESSED_RGBA8_ETC2_EAC</constant>, or
|
|
<constant>GL_COMPRESSED_SRGB8_ALPHA8_ETC2_EAC</constant>.
|
|
</para>
|
|
<para>
|
|
<constant>GL_INVALID_VALUE</constant> is generated if <parameter>imageSize</parameter> is not consistent with
|
|
the format, dimensions, and contents of the specified compressed image data.
|
|
</para>
|
|
<para>
|
|
<constant>GL_INVALID_VALUE</constant> is generated if <parameter>border</parameter> is not 0.
|
|
</para>
|
|
<para>
|
|
<constant>GL_INVALID_OPERATION</constant> is generated if parameter combinations are not
|
|
supported by the specific compressed internal format as specified in the
|
|
specific texture compression extension. The ETC2/EAC texture compression algorithm
|
|
supports only two-dimensional images. If internalformat is an ETC2/EAC format,
|
|
<function>glCompressedTexImage3D</function> will generate an INVALID_OPERATION error if target is not TEXTURE_2D_ARRAY.
|
|
</para>
|
|
<para>
|
|
<constant>GL_INVALID_OPERATION</constant> is generated if a non-zero buffer object name is bound to the
|
|
<constant>GL_PIXEL_UNPACK_BUFFER</constant> target and the buffer object's data store is currently mapped.
|
|
</para>
|
|
<para>
|
|
<constant>GL_INVALID_OPERATION</constant> is generated if a non-zero buffer object name is bound to the
|
|
<constant>GL_PIXEL_UNPACK_BUFFER</constant> target and the data would be unpacked from the buffer
|
|
object such that the memory reads required would exceed the data store size.
|
|
</para>
|
|
<para>
|
|
Undefined results, including abnormal program termination, are generated if <parameter>data</parameter> is not encoded in a manner consistent with the extension specification defining the internal compression format.
|
|
</para>
|
|
</refsect1>
|
|
<refsect1 xml:id="associatedgets"><title>Associated Gets</title>
|
|
<para>
|
|
<citerefentry><refentrytitle>glGet</refentrytitle></citerefentry> with argument <constant>GL_PIXEL_UNPACK_BUFFER_BINDING</constant>
|
|
</para>
|
|
</refsect1>
|
|
<refsect1 xml:id="versions">
|
|
<title>API Version Support</title>
|
|
<informaltable>
|
|
<tgroup cols="3" align="left">
|
|
<xi:include xmlns:xi="http://www.w3.org/2001/XInclude" href="apifunchead.xml" xpointer="xpointer(/*/*)"/>
|
|
<tbody>
|
|
<row>
|
|
<entry>glCompressedTexImage3D</entry>
|
|
<xi:include xmlns:xi="http://www.w3.org/2001/XInclude" href="apiversion.xml" xpointer="xpointer(/*/*[@role='es30']/*)"/>
|
|
</row>
|
|
</tbody>
|
|
</tgroup>
|
|
</informaltable>
|
|
</refsect1>
|
|
<refsect1 xml:id="seealso"><title>See Also</title>
|
|
<para>
|
|
<citerefentry><refentrytitle>glActiveTexture</refentrytitle></citerefentry>,
|
|
<citerefentry><refentrytitle>glCompressedTexImage2D</refentrytitle></citerefentry>,
|
|
<citerefentry><refentrytitle>glCompressedTexSubImage2D</refentrytitle></citerefentry>,
|
|
<citerefentry><refentrytitle>glCompressedTexSubImage3D</refentrytitle></citerefentry>,
|
|
<citerefentry><refentrytitle>glCopyTexSubImage2D</refentrytitle></citerefentry>,
|
|
<citerefentry><refentrytitle>glCopyTexSubImage3D</refentrytitle></citerefentry>,
|
|
<citerefentry><refentrytitle>glPixelStorei</refentrytitle></citerefentry>,
|
|
<citerefentry><refentrytitle>glTexImage2D</refentrytitle></citerefentry>,
|
|
<citerefentry><refentrytitle>glTexSubImage2D</refentrytitle></citerefentry>,
|
|
<citerefentry><refentrytitle>glTexSubImage3D</refentrytitle></citerefentry>,
|
|
<citerefentry><refentrytitle>glTexParameter</refentrytitle></citerefentry>
|
|
</para>
|
|
</refsect1>
|
|
<refsect1 xml:id="Copyright"><title>Copyright</title>
|
|
<para>
|
|
Copyright <trademark class="copyright"/> 1991-2006 Silicon Graphics, Inc.
|
|
Copyright <trademark class="copyright"/> 2010-2014 Khronos Group.
|
|
This document is licensed under the SGI Free Software B License.
|
|
For details, see
|
|
<link xmlns:xlink="http://www.w3.org/1999/xlink" xlink:href="http://oss.sgi.com/projects/FreeB/">http://oss.sgi.com/projects/FreeB/</link>.
|
|
</para>
|
|
</refsect1>
|
|
</refentry>
|