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-<TITLE>Development Notes</TITLE>
+<div class="header">
+ The Mesa 3D Graphics Library
+</div>
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+<iframe src="contents.html"></iframe>
+<div class="content">
-<BODY>
+<h1>Development Notes</h1>
-<H1>Development Notes</H1>
+<ul>
+<li><a href="#extensions">Adding Extensions</a>
+</ul>
-<H2>Adding Extentions</H2>
+<h2 id="extensions">Adding Extensions</h2>
<p>
To add a new GL extension to Mesa you have to do at least the following.
+</p>
<ul>
<li>
- If glext.h doesn't define the extension, edit include/GL/gl.h and add
- code like this:
+ If <code>glext.h</code> doesn't define the extension, edit
+ <code>include/GL/gl.h</code> and add code like this:
<pre>
#ifndef GL_EXT_the_extension_name
#define GL_EXT_the_extension_name 1
</pre>
</li>
<li>
- In the src/mesa/glapi/ directory, add the new extension functions and
- enums to the gl_API.xml file.
+ In the <code>src/mapi/glapi/gen/</code> directory, add the new extension
+ functions and enums to the <code>gl_API.xml</code> 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
+ Add a new entry to the <code>gl_extensions</code> struct in
+ <code>mtypes.h</code> if the extension requires driver capabilities not
+ already exposed by another extension.
</li>
<li>
- Update the <code>extensions.c</code> file.
+ Add a new entry to the <code>src/mesa/main/extensions_table.h</code> file.
</li>
<li>
From this point, the best way to proceed is to find another extension,
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 <code>_mesa_has_##name_str()</code> function
+ defined in <code>src/mesa/main/extensions.h</code>.
+</li>
+<li>
+ The dispatch tests check_table.cpp and <code>dispatch_sanity.cpp</code>
+ should be updated with details about the new extensions functions. These
+ tests are run using <code>meson test</code>.
+</li>
</ul>
-<H2>Coding Style</H2>
-
-<p>
-Mesa's code style has changed over the years. Here's the latest.
-</p>
-
-<p>
-Comment your code! It's extremely important that open-source code be
-well documented. Also, strive to write clean, easily understandable code.
-</p>
-
-<p>
-3-space indentation
-</p>
-
-<p>
-If you use tabs, set them to 8 columns
-</p>
-
-<p>
-Brace example:
-</p>
-<pre>
- if (condition) {
- foo;
- }
- else {
- bar;
- }
-</pre>
-
-<p>
-Here's the GNU indent command which will best approximate my preferred style:
-</p>
-<pre>
- indent -br -i3 -npcs --no-tabs infile.c -o outfile.c
-</pre>
-
-
-<p>
-Local variable name example: localVarName (no underscores)
-</p>
-
-<p>
-Constants and macros are ALL_UPPERCASE, with _ between words
-</p>
-
-<p>
-Global variables are not allowed.
-</p>
-
-<p>
-Function name examples:
-</p>
-<pre>
- glFooBar() - a public GL entry point (in dispatch.c)
- _mesa_FooBar() - the internal immediate mode function
- save_FooBar() - retained mode (display list) function in dlist.c
- foo_bar() - a static (private) function
- _mesa_foo_bar() - an internal non-static Mesa function
-</pre>
-
-
-<H2>Making a New Mesa Release</H2>
-
-<p>
-These are the instructions for making a new Mesa release.
-</p>
-
-<H3>Get latest source files</H3>
-<p>
-Use "cvs update -dAP " to get the latest Mesa files from CVS.
-</p>
-
-
-<H3>Verify and update version info</H3>
-<p>
-Create/edit the docs/RELNOTES-X.Y file to document what's new in the release.
-Add the new RELNOTES-X.Y file to <a href="relnotes.html">relnotes.html</a>.
-Update the docs/VERSIONS file too.
-</p>
-
-<p>
-Edit the MESA_MAJOR, MESA_MINOR and MESA_TINY version numbers in
-configs/default.
-</p>
-
-<p>
-Make sure the values in src/mesa/main/version.h are correct.
-</p>
-
-<p>
-Edit the top-level Makefile and verify that DIRECTORY, LIB_NAME and
-DEMO_NAME are correct.
-</p>
-
-<p>
-Update the docs/news.html file and docs/download.html files.
-</p>
-
-<p>
-Check in all updates to CVS.
-</p>
-
-<p>
-Tag the CVS files with the release name (in the form <b>mesa_X_Y</b>).
-</p>
-
-
-<H3>Make the tarballs</H3>
-<p>
-Make a symbolic link from $(DIRECTORY) to 'Mesa'. For example,
-ln -s Mesa Mesa-6.3
-This is needed in order to make a correct tar file in the next step.
-</p>
-
-<p>
-Make the distribution files. From inside the Mesa directory:
-<pre>
- make tarballs
-</pre>
-
-<p>
-After the tarballs are created, the md5 checksums for the files will
-be computed.
-Add them to the docs/news.html file.
-</p>
-
-<p>
-Copy the distribution files to a temporary directory, unpack them,
-compile everything, and run some demos to be sure everything works.
-</p>
-
-<H3>Update the website and announce the release</H3>
-<p>
-Follow the directions on SourceForge for creating a new "release" and
-uploading the tarballs.
-</p>
-
-<p>
-Update the web site by copying the docs/ directory's files to
-/home/users/b/br/brianp/mesa-www/htdocs/
-</p>
-
-<p>
-Make an announcement on the mailing lists:
-<em>m</em><em>e</em><em>s</em><em>a</em><em>3</em><em>d</em><em>-</em><em>d</em><em>e</em><em>v</em><em>@</em><em>l</em><em>i</em><em>s</em><em>t</em><em>s</em><em>.</em><em>s</em><em>f</em><em>.</em><em>n</em><em>e</em><em>t</em>,
-<em>m</em><em>e</em><em>s</em><em>a</em><em>3</em><em>d</em><em>-</em><em>u</em><em>s</em><em>e</em><em>r</em><em>s</em><em>@</em><em>l</em><em>i</em><em>s</em><em>t</em><em>s</em><em>.</em><em>s</em><em>f</em><em>.</em><em>n</em><em>e</em><em>t</em>
-and
-<em>m</em><em>e</em><em>s</em><em>a</em><em>3</em><em>d</em><em>-</em><em>a</em><em>n</em><em>n</em><em>o</em><em>u</em><em>n</em><em>c</em><em>e</em><em>@</em><em>l</em><em>i</em><em>s</em><em>t</em><em>s</em><em>.</em><em>s</em><em>f</em><em>.</em><em>n</em><em>e</em><em>t</em>
-</p>
-
-
+</div>
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projects / mesa.git / blobdiff