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-
-
- Information for Mesa developers
-
-
- Adding Extentions
- -----------------
-
- To add a new GL extension to Mesa you have to do the following.
-
- Edit include/GL/gl.h and add
- - new enum tokens
- - new API function entry points
- - #define GL_EXT_the_extension_name 1
-
- If adding a new API function (call it glNewFunctionEXT):
- - insert glNewFunctionEXT()into src/apiext.h
- - edit src/types.h and add NewFunction to the gl_api_table struct
- - implement gl_NewFunction() in the appropriate src file
- - hook gl_NewFunction() into pointers.c
- - add display list support in dlist.c for save_NewFunction()
- - add glNewFunctionEXT to gl_GetProcAddress() in extensions.c or
- in the device driver's GetProcAddress() function if appropriate
-
- If adding new GL state be sure to update get.c and enable.c
-
- Document the extension in the README file. Either include a pointer
- to the extension spec or write an extension spec and put it in the
- Mesa/docs/ directory.
-
-
-
- Coding Style
- ------------
-
- Mesa's code style has changed over the years. Here's the latest.
-
- Comment your code! It's extremely important that open-source code be
- well documented. Also, strive to write clean, easily understandable code.
-
- 3-space indentation
-
- If you use tabs, set them to 8 columns
-
- Brace example:
-
- if (condition) {
- foo;
- }
- else {
- bar;
- }
-
- Local variable name example: localVarName (no underscores)
-
- Constants and macros are ALL UPPERCASE, with _ between words
-
- Global vars not allowed. Think very seriously before adding a new global!
-
- Function name examples:
- glFooBar() - a public GL entry point
- gl_FooBar() - the internal immediate mode function
- save_FooBar() - retained mode (display list) function in dlist.c
- foo_bar() - a static (private) function
- gl_foo_bar() - an internal Mesa function
-
-
-
- Writing a Device Driver
- -----------------------
-
- XXX to do
-
-
-
- Making a New Mesa Release
- -------------------------
-
- These are the instructions for making a new Mesa release.
-
- Be sure to do a "cvs update -d ." in the Mesa directory to
- get all the latest files.
-
- Update the version strings in src/get.c, src-glu/glu.c, and
- src/X/fakeglx.c to return the new Mesa version number.
-
- Edit the docs/RELNOTES file to document what's new in the release.
- Edit the docs/VERSIONS file too.
- Update the docs/IAFA-PACKAGE file.
-
- Edit the GNU configure stuff to change versions numbers as needed:
- Update the version string (second argument) in the line
- "AM_INIT_AUTOMAKE(Mesa, 3.1b3)".
- Remove the leading `dnl' from the line "dnl AM_MAINTAINER_MODE".
- For both LIBGL_VERSION and LIBGLU_VERSION (libGL and libGLU version) do:
- * If the library source code has changed at all since the last
- update, then increment REVISION (`C:R:A' becomes `C:R+1:A').
- * If any interfaces have been added, removed, or changed since the
- last update, increment CURRENT, and set REVISION to 0.
- * If any interfaces have been added since the last public release,
- then increment AGE.
- * If any interfaces have been removed since the last public release,
- then set AGE to 0.
-
- Run "fixam -f" to disable automatic dependency tracking.
- Run the bootstrap script to generate the configure script.
- (Requires autoconf 2.13 and automake 1.4, available from ftp.gnu.org)
-
- Edit Make-config and change the MESA_MAJOR and/or MESA_MINOR versions.
-
- Edit Makefile.X11 and verify DIRECTORY is set correctly. The Mesa
- sources must be in that directory (or there must be a symbolic link).
-
- Edit Makefile.X11 and verify that LIB_NAME and DEMO_NAME are correct.
- If it's a beta release, be sure the bump up the beta release number.
-
- cp Makefile.X11 to Makefile so that the old-style Mesa makefiles
- still work. ./configure will overwrite it if that's what the user runs.
-
- Make a symbolic link from $(DIRECTORY) to Mesa. For example,
- ln -s Mesa Mesa-3.1 This is needed in order to make a correct
- tar file in the next step.
-
- Make the distribution files. From inside the Mesa directory:
- make -f Makefile.X11 lib_tar
- make -f Makefile.X11 demo_tar
- make -f Makefile.X11 lib_zip
- make -f Makefile.X11 demo_zip
-
- Copy the distribution files to a temporary directory, unpack them,
- compile everything, and run some demos to be sure everything works.
-
- Upload the *.tar.gz and *.zip files to ftp.mesa3d.org
-
- Update the web site. CJ Beyer (cj@styx.phy.vanderbilt.edu) can
- help with this and uploading to the ftp site.
-
- Make the announcement to mesa-dev@mesa3d.org, mesa@iqm.unicamp.br,
- mesa-announce@iqm.unicamp.br and other sites.
-
-
- ----------------------------------------------------------------------
- $Id: DEVINFO,v 1.7 1999/09/19 20:09:00 tanner Exp $
-