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- README for port of Mesa 3.x to XFree86 on OS/2 (X/2)
- (as of 19990514)
-
-
- Contents:
-
- 1) Binary release
- 2) Building from sources
- 3) History
- 4) Todo
- 5) Mesa Home Page
-
-
-1) Binary release
-
- Though the Mesa sources should build in a quite reasonable time even on
- a 585 class machine a binary relase is available (check topic 4) for an URL)
- This package includes:
-
- - lib/MesaGL.dll, MesaGL.a
- - lib/MesaGLU.dll, MesaGLU.a
- - lib/glut.dll, glut.a
- - include/GL/*.h
-
- Installing this in your XFree86 tree will enable you to build and
- run all applications compatible with Mesa (and the current DLL
- interface, of course ;-)
- As usual the OMF-style libraries can be created using emxomf.
- (e.g. "emxomf foo.a" creates the foo.lib omf-style library).
- The static libraries are rarely used and you have to rebuild
- Mesa to get them. They're a supported target, so you get
- them in a straightforward way (see below).
-
- The testing of these libraries was limited to the supplied
- demos/examples and a quite small number of third-party apps.
- No warranty ... as usual ... ;-)
-
-
-2) Instructions to build Mesa 3.x for XFree86/OS2 from sources:
-
- Except the official Mesa source distribution you need:
- - a recent version of XFree86 (3.3.x or above) including
- the programming libraries
- - EMX 0.9c (0.9d might work, never checked)
- - GNU make
- - REXX (!)
-
- The creation of the DLLs as well as of the static libraries
- (if you want to have them) is handled in "mklib-emx.cmd",
- a small REXX script. Perhaps not the best idea, but this
- way it fits best in the scheme used to build libraries
- on all platforms in Mesa 3.x.
-
- To actually build the libraries and demos, check mklib-emx.cmd
- and modify it as desired. Then type
- make os2-x11
- and wait for completion ;-)
-
-
-3) History
-
- Initially Darren Abbott (abbott@hiwaay.net) ported Mesa versions 2.x
- to XFree86 OS/2. This port might still be available from
- http://fly.HiWAAY.net/~abbott/xfree86-os2/xfree86.html
-
- The current port picked up things during the beta test for 3.0.
- No major changes in the source were done. The build mechanism under OS/2
- has been made very similar to other platforms (if you treat mklib-emx.cmd
- as a "black box").
- Advantage is that X/2 is now a valid target and all files are
- integrated in the official source distribution.
- Disadvantage is that this port (i.e. the DLLs' interface itself) is
- definitly NOT COMPATIBLE to those of version 2.x.
- It's uncertain whether this would be at all possible but since there
- a _very_ few those apps it's not worth to find out anyway.
- Also some libs (MesaTK, MesaAUX) are withdrawn from the Mesa distribution,
- and accordingly from the OS/2 port.
-
-4) Todo
-
- By now binary compatiblity is ensured by using the function names
- as entry points instead of ordinals. This might cost performance and
- is subject to change in future. In addition the supplied X86 assembler
- source is not used yet.
-
-5) Mesa Home Page
-
- You can get the source code and more information about Mesa from
- http://www.mesa3d.org/
-
- The OS/2 ports should be available from
- http://r350.ee.ntu.edu.tw/~hcchu/os2/ports
-
---
-Alexander Mai
-st002279@hrzpub.tu-darmstadt.de