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| -rw-r--r-- | docs/devinfo.html | 56 |
1 files changed, 33 insertions, 23 deletions
diff --git a/docs/devinfo.html b/docs/devinfo.html index 97e17bc1c0a..c1ddea3e4b9 100644 --- a/docs/devinfo.html +++ b/docs/devinfo.html @@ -10,29 +10,39 @@ <H2>Adding Extentions</H2> <p> -To add a new GL extension to Mesa you have to do the following. -<pre> - If glext.h doesn't define the extension, 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 -</pre> -<p> -If adding new GL state be sure to update get.c and enable.c -</p> -<p> -In general, look for an extension similar to the new one that's already -implemented in Mesa and follow it by example. -</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/mesa/glapi/ 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> + Find an existing extension that's similar to the new one and search + the sources for code related to that extension. + Implement new code as needed. + In general, new state variables will be added to mtypes.h. If the + extension is rather large, try to implement it in a new source file. +</li> +<li> + If hew extension adds new GL state, the functions in get.c, enable.c + and attrib.c will most likely require new code. +</li> +</ul> |