mirror of
https://github.com/Ryujinx/Opentk.git
synced 2024-12-25 18:25:30 +00:00
174 lines
8.2 KiB
XML
174 lines
8.2 KiB
XML
<?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="glXCreatePbuffer">
|
|
<refmeta>
|
|
<refmetainfo>
|
|
<copyright>
|
|
<year>1991-2006</year>
|
|
<holder>Silicon Graphics, Inc.</holder>
|
|
</copyright>
|
|
</refmetainfo>
|
|
<refentrytitle>glXCreatePbuffer</refentrytitle>
|
|
<manvolnum>3G</manvolnum>
|
|
</refmeta>
|
|
<refnamediv>
|
|
<refname>glXCreatePbuffer</refname>
|
|
<refpurpose>create an off-screen rendering area</refpurpose>
|
|
</refnamediv>
|
|
<refsynopsisdiv><title>C Specification</title>
|
|
<funcsynopsis>
|
|
<funcprototype>
|
|
<funcdef>GLXPbuffer <function>glXCreatePbuffer</function></funcdef>
|
|
<paramdef>Display * <parameter>dpy</parameter></paramdef>
|
|
<paramdef>GLXFBConfig <parameter>config</parameter></paramdef>
|
|
<paramdef>const int * <parameter>attrib_list</parameter></paramdef>
|
|
</funcprototype>
|
|
</funcsynopsis>
|
|
</refsynopsisdiv>
|
|
<!-- eqn: ignoring delim $$ -->
|
|
<refsect1 id="parameters"><title>Parameters</title>
|
|
<variablelist>
|
|
<varlistentry>
|
|
<term><parameter>dpy</parameter></term>
|
|
<listitem>
|
|
<para>
|
|
Specifies the connection to the X server.
|
|
</para>
|
|
</listitem>
|
|
</varlistentry>
|
|
<varlistentry>
|
|
<term><parameter>config</parameter></term>
|
|
<listitem>
|
|
<para>
|
|
Specifies a GLXFBConfig structure with the desired attributes for the
|
|
window.
|
|
</para>
|
|
</listitem>
|
|
</varlistentry>
|
|
<varlistentry>
|
|
<term><parameter>attrib_list</parameter></term>
|
|
<listitem>
|
|
<para>
|
|
Specifies a list of attribute value pairs, which must be terminated with
|
|
<constant>None</constant> or <constant>NULL</constant>. Accepted attributes are
|
|
<constant>GLX_PBUFFER_WIDTH</constant>, <constant>GLX_PBUFFER_HEIGHT</constant>,
|
|
<constant>GLX_PRESERVED_CONTENTS</constant>, and <constant>GLX_LARGEST_PBUFFER</constant>.
|
|
</para>
|
|
</listitem>
|
|
</varlistentry>
|
|
</variablelist>
|
|
</refsect1>
|
|
<refsect1 id="description"><title>Description</title>
|
|
<para>
|
|
<function>glXCreatePbuffer</function> creates an off-screen rendering area and returns its XID.
|
|
Any GLX rendering context that was created with respect to <parameter>config</parameter>
|
|
can be used to render into this window.
|
|
Use <citerefentry><refentrytitle>glXMakeContextCurrent</refentrytitle></citerefentry> to associate the rendering area with a GLX
|
|
rendering context.
|
|
</para>
|
|
<para>
|
|
The accepted attributes for a GLXPbuffer are:
|
|
</para>
|
|
<variablelist>
|
|
<varlistentry>
|
|
<term><constant>GLX_PBUFFER_WIDTH</constant></term>
|
|
<listitem>
|
|
<para>
|
|
Specify the pixel width of the requested GLXPbuffer. The default value
|
|
is 0.
|
|
</para>
|
|
</listitem>
|
|
</varlistentry>
|
|
<varlistentry>
|
|
<term><constant>GLX_PBUFFER_HEIGHT</constant></term>
|
|
<listitem>
|
|
<para>
|
|
Specify the pixel height of the requested GLXPbuffer. The default value
|
|
is 0.
|
|
</para>
|
|
</listitem>
|
|
</varlistentry>
|
|
<varlistentry>
|
|
<term><constant>GLX_LARGEST_PBUFFER</constant></term>
|
|
<listitem>
|
|
<para>
|
|
Specify to obtain the largest available pixel buffer, if the requested
|
|
allocation would have failed. The width and height of the allocated
|
|
pixel buffer will never exceed the specified <constant>GLX_PBUFFER_WIDTH</constant> or
|
|
<constant>GLX_PBUFFER_HEIGHT</constant>, respectively. Use <citerefentry><refentrytitle>glXQueryDrawable</refentrytitle></citerefentry> to
|
|
retrieve the dimensions of the allocated pixel buffer. The default value is
|
|
<constant>False</constant>.
|
|
</para>
|
|
</listitem>
|
|
</varlistentry>
|
|
<varlistentry>
|
|
<term><constant>GLX_PRESERVED_CONTENTS</constant></term>
|
|
<listitem>
|
|
<para>
|
|
Specify if the contents of the pixel buffer should be preserved when a
|
|
resource conflict occurs. If set to <constant>False</constant>, the contents of the
|
|
pixel buffer may be lost at any time. If set to <constant>True</constant>, or not
|
|
specified in <parameter>attrib_list</parameter>, then the contents of the pixel buffer will be preserved
|
|
(most likely by copying the contents into main system memory from the
|
|
frame buffer). In either case, the client can register (using
|
|
<citerefentry><refentrytitle>glXSelectEvent</refentrytitle></citerefentry>, to receive
|
|
pixel buffer clobber events that are generated when the pbuffer contents have
|
|
been preserved or damaged.
|
|
</para>
|
|
</listitem>
|
|
</varlistentry>
|
|
</variablelist>
|
|
<para>
|
|
GLXPbuffers contain the color and ancillary buffers specified by
|
|
<parameter>config</parameter>. It is possible to create a pixel buffer with back buffers and
|
|
to swap those buffers using <citerefentry><refentrytitle>glXSwapBuffers</refentrytitle></citerefentry>.
|
|
</para>
|
|
</refsect1>
|
|
<refsect1 id="notes"><title>Notes</title>
|
|
<para>
|
|
<function>glXCreatePbuffer</function> is available only if the GLX version is 1.3 or greater.
|
|
</para>
|
|
<para>
|
|
If the GLX version is 1.1 or 1.0, the GL version must be 1.0.
|
|
If the GLX version is 1.2, then the GL version must be 1.1.
|
|
If the GLX version is 1.3, then the GL version must be 1.2.
|
|
</para>
|
|
<para>
|
|
GLXPbuffers are allocated from frame buffer resources; applications
|
|
should consider deallocating them when they are not in use.
|
|
</para>
|
|
</refsect1>
|
|
<refsect1 id="errors"><title>Errors</title>
|
|
<para>
|
|
<constant>BadAlloc</constant> is generated if there are insufficient resources to
|
|
allocate the requested GLXPbuffer.
|
|
</para>
|
|
<para>
|
|
<constant>GLXBadFBConfig</constant> is generated if <parameter>config</parameter> is not a valid
|
|
GLXFBConfig.
|
|
</para>
|
|
<para>
|
|
<constant>BadMatch</constant> is generated if <parameter>config</parameter> does not support rendering to
|
|
pixel buffers (e.g., <constant>GLX_DRAWABLE_TYPE</constant> does not contain
|
|
<constant>GLX_PBUFFER_BIT</constant>).
|
|
</para>
|
|
</refsect1>
|
|
<refsect1 id="seealso"><title>See Also</title>
|
|
<para>
|
|
<citerefentry><refentrytitle>glXChooseFBConfig</refentrytitle></citerefentry>,
|
|
<function>glXCreatePbuffer</function>,
|
|
<citerefentry><refentrytitle>glXMakeContextCurrent</refentrytitle></citerefentry>,
|
|
<citerefentry><refentrytitle>glXSelectEvent</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>
|