mirror of
https://gitee.com/openharmony/third_party_mesa3d
synced 2024-11-24 16:00:56 +00:00
2edc29ab1e
Properly document the whole process: - Brief on what, when, where - Picking, testing, branchpoints, pre-release announcement - Releasing, announcement, website and bugzilla updates Signed-off-by: Emil Velikov <emil.velikov@collabora.com> Reviewed-by: Brian Paul <brianp@vmware.com>
84 lines
2.1 KiB
HTML
84 lines
2.1 KiB
HTML
<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN" "http://www.w3.org/TR/html4/loose.dtd">
|
|
<html lang="en">
|
|
<head>
|
|
<meta http-equiv="content-type" content="text/html; charset=utf-8">
|
|
<title>Development Notes</title>
|
|
<link rel="stylesheet" type="text/css" href="mesa.css">
|
|
</head>
|
|
<body>
|
|
|
|
<div class="header">
|
|
<h1>The Mesa 3D Graphics Library</h1>
|
|
</div>
|
|
|
|
<iframe src="contents.html"></iframe>
|
|
<div class="content">
|
|
|
|
<h1>Development Notes</h1>
|
|
|
|
|
|
<ul>
|
|
<li><a href="#extensions">Adding Extensions</a>
|
|
</ul>
|
|
|
|
<h2 id="extensions">Adding Extensions</h2>
|
|
|
|
<p>
|
|
To add a new GL extension to Mesa you have to do at least the following.
|
|
|
|
<ul>
|
|
<li>
|
|
If glext.h doesn't define the extension, edit include/GL/gl.h and add
|
|
code like this:
|
|
<pre>
|
|
#ifndef GL_EXT_the_extension_name
|
|
#define GL_EXT_the_extension_name 1
|
|
/* declare the new enum tokens */
|
|
/* prototype the new functions */
|
|
/* TYPEDEFS for the new functions */
|
|
#endif
|
|
</pre>
|
|
</li>
|
|
<li>
|
|
In the src/mapi/glapi/gen/ directory, add the new extension functions and
|
|
enums to the gl_API.xml file.
|
|
Then, a bunch of source files must be regenerated by executing the
|
|
corresponding Python scripts.
|
|
</li>
|
|
<li>
|
|
Add a new entry to the <code>gl_extensions</code> struct in mtypes.h
|
|
if the extension requires driver capabilities not already exposed by
|
|
another extension.
|
|
</li>
|
|
<li>
|
|
Add a new entry to the src/mesa/main/extensions_table.h file.
|
|
</li>
|
|
<li>
|
|
From this point, the best way to proceed is to find another extension,
|
|
similar to the new one, that's already implemented in Mesa and use it
|
|
as an example.
|
|
</li>
|
|
<li>
|
|
If the new extension adds new GL state, the functions in get.c, enable.c
|
|
and attrib.c will most likely require new code.
|
|
</li>
|
|
<li>
|
|
To determine if the new extension is active in the current context,
|
|
use the auto-generated _mesa_has_##name_str() function defined in
|
|
src/mesa/main/extensions.h.
|
|
</li>
|
|
<li>
|
|
The dispatch tests check_table.cpp and dispatch_sanity.cpp
|
|
should be updated with details about the new extensions functions. These
|
|
tests are run using 'make check'
|
|
</li>
|
|
</ul>
|
|
</p>
|
|
|
|
|
|
|
|
|
|
</div>
|
|
</body>
|
|
</html>
|