summaryrefslogtreecommitdiff
path: root/glew/auto/EGL-Registry/sdk/docs/man/eglCreateContext.xml
diff options
context:
space:
mode:
Diffstat (limited to 'glew/auto/EGL-Registry/sdk/docs/man/eglCreateContext.xml')
-rw-r--r--glew/auto/EGL-Registry/sdk/docs/man/eglCreateContext.xml212
1 files changed, 212 insertions, 0 deletions
diff --git a/glew/auto/EGL-Registry/sdk/docs/man/eglCreateContext.xml b/glew/auto/EGL-Registry/sdk/docs/man/eglCreateContext.xml
new file mode 100644
index 0000000..73c54b6
--- /dev/null
+++ b/glew/auto/EGL-Registry/sdk/docs/man/eglCreateContext.xml
@@ -0,0 +1,212 @@
+<refentry xmlns="http://docbook.org/ns/docbook" version="5.0" xml:base="" xml:id="eglCreateContext">
+ <info>
+ <copyright>
+ <year>2003-2018</year>
+ <holder>The Khronos Group Inc.</holder>
+ </copyright>
+ </info>
+ <refmeta>
+ <refentrytitle>eglCreateContext</refentrytitle>
+ <manvolnum>3G</manvolnum>
+ </refmeta>
+ <refnamediv>
+ <refname>eglCreateContext</refname>
+ <refpurpose>
+ create a new <acronym>EGL</acronym> rendering context
+ </refpurpose>
+ </refnamediv>
+ <refsynopsisdiv>
+ <title>C Specification</title>
+ <funcsynopsis>
+ <funcprototype>
+ <funcdef>EGLContext <function>eglCreateContext</function></funcdef>
+ <paramdef>EGLDisplay <parameter>display</parameter></paramdef>
+ <paramdef>EGLConfig <parameter>config</parameter></paramdef>
+ <paramdef>EGLContext <parameter>share_context</parameter></paramdef>
+ <paramdef>EGLint const * <parameter>attrib_list</parameter></paramdef>
+ </funcprototype>
+ </funcsynopsis>
+ </refsynopsisdiv>
+ <refsect1 xml:id="parameters"><title>Parameters</title>
+ <variablelist>
+ <varlistentry>
+ <term><parameter>display</parameter></term>
+ <listitem><para>
+ Specifies the
+ <acronym>EGL</acronym>
+ display connection.
+ </para></listitem>
+ </varlistentry>
+ <varlistentry>
+ <term><parameter>config</parameter></term>
+ <listitem><para>Specifies the EGL frame buffer configuration that
+ defines the frame buffer resource available to the rendering context.
+ </para></listitem>
+ </varlistentry>
+ <varlistentry>
+ <term><parameter>share_context</parameter></term>
+ <listitem><para>
+ Specifies another
+ <acronym>EGL</acronym>
+ rendering context with which to share data, as
+ defined by the client API corresponding to the
+ contexts. Data is also shared with all other
+ contexts with which
+ <parameter>share_context</parameter> shares data.
+ <constant>EGL_NO_CONTEXT</constant> indicates that
+ no sharing is to take place.
+ </para>
+ </listitem>
+ </varlistentry>
+ <varlistentry>
+ <term><parameter>attrib_list</parameter></term>
+ <listitem><para>
+ Specifies attributes and attribute values for the
+ context being created. Only the attribute
+ <constant>EGL_CONTEXT_CLIENT_VERSION</constant> may
+ be specified.
+ </para></listitem>
+ </varlistentry>
+ </variablelist>
+ </refsect1>
+ <refsect1 xml:id="description"><title>Description</title>
+ <para>
+ <function>eglCreateContext</function> creates an EGL
+ rendering context for the current rendering API (as set with
+ <function>eglBindAPI</function>) and returns a handle to the
+ context. The context can then be used to render into an EGL
+ drawing surface. If <function>eglCreateContext</function>
+ fails to create a rendering context,
+ <constant>EGL_NO_CONTEXT</constant> is returned.
+ </para>
+ <para>
+ If <parameter>share_context</parameter> is not
+ <constant>EGL_NO_CONTEXT</constant>, then all shareable data
+ in the context (as defined by the client API specification
+ for the current rendering API) are shared by context
+ <parameter>share_context</parameter>, all other contexts
+ <parameter>share_context</parameter> already shares with,
+ and the newly created context. An arbitrary number of
+ rendering contexts can share data. However, all rendering
+ contexts that share data must themselves exist in the same
+ address space. Two rendering contexts share an address space
+ if both are owned by a single process.
+ </para>
+ <para>
+ <parameter>attrib_list</parameter> specifies a list of
+ attributes for the context. The list has the same structure
+ as described for <function>eglChooseConfig</function>. The
+ attributes and attribute values which may be specified are
+ as follows:
+ </para>
+ <variablelist>
+ <varlistentry>
+ <term><constant>EGL_CONTEXT_MAJOR_VERSION</constant></term>
+ <listitem><para>
+ Must be followed by an integer specifying the requested
+ major version of an OpenGL or OpenGL ES context. The
+ default value is 1. This attribute is an alias of the
+ older <constant>EGL_CONTEXT_CLIENT_VERSION</constant>,
+ and the tokens may be used interchangeably.
+ </para></listitem>
+ </varlistentry>
+ <varlistentry>
+ <term><constant>EGL_CONTEXT_MINOR_VERSION</constant></term>
+ <listitem><para>
+ Must be followed by an integer specifying the requested
+ minor version of an OpenGL or OpenGL ES context. The
+ default value is 0.
+ </para></listitem>
+ </varlistentry>
+ <varlistentry>
+ <term><constant>EGL_CONTEXT_OPENGL_PROFILE_MASK</constant></term>
+ <listitem><para>
+ Must be followed by an integer bitmask specifying the
+ <firstterm>profile</firstterm> of an OpenGL context.
+ Bits which may be set include
+ <constant>EGL_CONTEXT_OPENGL_CORE_PROFILE_BIT</constant>
+ for a core profile and
+ <constant>EGL_CONTEXT_OPENGL_COMPATIBILITY_PROFILE_BIT</constant>
+ for a compatibility profile. The default value is
+ <constant>EGL_CONTEXT_OPENGL_CORE_PROFILE_BIT</constant>.
+ All OpenGL 3.2 and later implementations are required to
+ implement the core profile, but implementation of the
+ compatibility profile is optional.
+ </para></listitem>
+ </varlistentry>
+ <varlistentry>
+ <term><constant>EGL_CONTEXT_OPENGL_DEBUG</constant></term>
+ <listitem><para>
+ Must be followed by <constant>EGL_TRUE</constant>,
+ specifying that an OpenGL or OpenGL ES <firstterm>debug
+ context</firstterm> should be created, or
+ <constant>EGL_FALSE</constant>, if a non-debug context
+ should be created. The default value is
+ <constant>EGL_FALSE</constant>.
+ </para></listitem>
+ </varlistentry>
+ <varlistentry>
+ <term><constant>EGL_CONTEXT_OPENGL_FORWARD_COMPATIBLE</constant></term>
+ <listitem><para>
+ Must be followed by <constant>EGL_TRUE</constant>,
+ specifying that a
+ <firstterm>forward-compatible</firstterm> OpenGL context
+ should be created, or <constant>EGL_FALSE</constant>, if
+ a non-forward-compatible context should be created. The
+ default value is <constant>EGL_FALSE</constant>.
+ </para></listitem>
+ </varlistentry>
+ <varlistentry>
+ <term><constant>EGL_CONTEXT_OPENGL_ROBUST_ACCESS</constant></term>
+ <listitem><para>
+ Must be followed by <constant>EGL_TRUE</constant>,
+ specifying that an OpenGL or OpenGL ES context
+ supporting <firstterm>robust buffer access</firstterm>
+ should be created, or <constant>EGL_FALSE</constant>, if
+ a non-robust context should be created. The default
+ value is <constant>EGL_FALSE</constant>.
+ </para></listitem>
+ </varlistentry>
+ <varlistentry>
+ <term><constant>EGL_CONTEXT_OPENGL_RESET_NOTIFICATION_STRATEGY</constant></term>
+ <listitem><para>
+ Must be followed by
+ <constant>EGL_LOSE_CONTEXT_ON_RESET</constant>,
+ specifying that an OpenGL or OpenGL ES context with
+ reset notification behavior
+ <constant>GL_LOSE_CONTEXT_ON_RESET_ARB</constant> should
+ be created, or
+ <constant>EGL_NO_RESET_NOTIFICATION</constant>,
+ specifying that an OpenGL or OpenGL ES context with
+ reset notification behavior
+ <constant>GL_NO_RESET_NOTIFICATION_ARB</constant> should
+ be created, as described by the
+ <constant>GL_ARB_robustness</constant> extension.
+ </para><para>
+ If the
+ <constant>EGL_CONTEXT_OPENGL_ROBUST_ACCESS</constant>
+ attribute is not set to <constant>EGL_TRUE</constant>,
+ context creation will not fail, but the resulting
+ context may not support robust buffer access, and
+ therefore may not support the requested reset
+ notification strategy The default value for
+ <constant>EGL_CONTEXT_OPENGL_RESET_NOTIFICATION_STRATEGY</constant>
+ is <constant>EGL_NO_RESET_NOTIFICATION</constant> .
+ </para></listitem>
+ </varlistentry>
+ </variablelist>
+ <para>
+ There are many possible interactions between requested OpenGL
+ and OpenGL ES context creation attributes, depending on the API
+ versions and extensions supported by the implementation. These
+ interactions are described in detail in the EGL 1.5
+ Specification, but are not listed here for compactness. The
+ requested attributes may not be able to be satisfied, but
+ context creation may still succeed. Applications should ensure
+ that the OpenGL or OpenGL ES contexts supports needed features
+ before using them, by determining the actual context version,
+ supported extensions, and supported context flags using runtime
+ queries.
+ </para>
+ </refsect1>
+</refentry>