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+AMIGA AMIWIN PORT of MESA: THE OPENGL SOFTWARE EMULATION
+========================================================
+Port by Victor Ng-Thow-Hing ([email protected]) 
+Original Author (Brian Paul ([email protected])
+
+Dec.1 , 1995: Port of release Mesa 1.2.5
+ - Modifications made to minimize changes to Mesa distribution.
+
+Nov.25, 1995: Port of release Mesa 1.2.4
+
+
+HISTORY
+=======
+As a 3D graphics progammer, I was increasingly frustrated to see OpenGL 
+appearing on so many platforms EXCEPT the Amiga. Up to now, the task
+of porting OpenGL directly from native Amiga drawing routines seemed like
+a daunting task. However, two important events made this port possible.
+
+First of all, Brian Paul wrote Mesa, the OpenGL software emulator that 
+can be found on many platforms - except the Amiga and Atari (who cares 
+about the latter!). This was pretty ironic considering that Mesa was 
+originally prototyped on an Amiga! The second great event was when 
+Holger Kruse developed AmiWin, the X11R6 server for the Amiga (definitely 
+register for this great piece of software) and released a development kit
+so one could compile X programs with SAS/C.
+
+Since Mesa had X routines as its primitive drawing operations, this made
+a marriage of Mesa and Amiwin feasible. I copied over the sources from
+an ftp site, played with the code, wrote some Smakefiles, and voila, 
+I had OpenGL programs displaying on my Amiga.
+
+Although the speed is nothing to be impressed about, this port can be
+potentially useful to those who want to quickly test their code in
+wireframe or perhaps learn more about programming with the OpenGL API.
+
+I hope Amiga developers will continue to write excellent software for
+their machine, especially more X clients for Amiwin. If you have any 
+solutions so some of my problems in the porting notes, please send me
+some email!
+
+See you around,
+Vic.
+
+HOW TO CREATE THE LIBRARIES AND SAMPLE CODE
+===========================================
+
+Just run the shell script mklib.amiwin in the mesa directory. This will
+make all the libraries and copy them into the mesa/lib directory. If you
+don't want to compile everything, just go to the desired directory and
+type smake in that directory.
+
+Change any of the variables in the smakefiles as necessary. You will REQUIRE
+the Amiwin development kit to compile these libraries since you need X11.LIB
+and the shareable X libraries. Some examples require the AmiTCP4.0
+net.lib static link library and related header files for unix related
+header files and functions like sleep().
+
+HOW TO USE THE MESA LIBRARIES
+=============================
+
+Study the Smakefiles in the demos, samples and book directories for the
+proper SAS/C options and linkable libraries to use. Basically aux calls
+require Mesaaux.LIB, gl calls require MesaGL.LIB, glu calls MesaGLU.LIB,
+tk calls Mesatk.LIB. There is a preliminary port of MesaGLUT.LIB toolkit
+available in the lib directory with the other Mesa libraries. However, 
+it seems to cause crashes on some of the sample code. Someone else may want
+to attempt a more stable port.
+
+PORTING NOTES TO AMIWIN
+=======================
+
+My strategy of porting was to leave as much of the code untouched as
+possible. I surrounded any amiga specific changes with 
+#ifdef AMIWIN ... #endif or #ifndef AMIWIN ... #endif preprocessor
+symbols. The code  was ported on an Amiga 2000, with Fusion 40 accelerator
+and a Picasso II graphics card. The SAS/C 6.56 compiler was used, with
+the AmiWin 2.16 X development kit.
+
+All compilations were done for a 68040 CPU with 68882 math coprocessor for
+maximum  speed. Please edit the smakefile for other compilers.
+I wrote smakefiles for the directories I ported. I omitted the Windows
+and Widgets directories. The former is for MS Windows and the latter 
+requires Motif, which is not easily available for the Amiga.
+
+Here are the changes I did per directory:
+
+* mesa
+Nov. 25, 1995 v 1.2.4
+  - added a mklib.amiwin shell script that will make all the libraries and
+    sample code for Mesa
+  - created this readme file: readme.AMIGA
+
+* mesa/include
+Dec. 1, 1995 v 1.2.5
+  - added the following to GL/xmesa.h 
+     #ifdef AMIWIN
+     #include <pragmas/xlib_pragmas.h>
+     extern struct Library *XLibBase;
+     #endif
+NET CHANGE: xmesa.h
+
+* mesa/src 
+Nov. 25, 1995 v 1.2.4
+  - added the necessary pragma calls for X functions to the following:
+    xmesa1.c, xmesa2.c, xmesa3.c, xfonts.c, glx.c 
+    This prevents undefined symbols errors during the linking phase for 
+    X library calls
+  - created smakefile
+Dec.  1, 1995 v 1.2.5
+  - removed AMIWIN includes from xmesa1.c, xmesa2.c, xmesa3.c, xfonts.c, 
+    glx.c since they are now defined in include/GL/xmesa.h
+NET CHANGE: smakefile
+   
+* mesa/src-tk
+Nov. 25, 1995 v 1.2.4
+  - added the necessary pragma calls for X functions to the following:
+    private.h
+  - created smakefile
+Dec.  1, 1995 v 1.2.5
+  - removed AMIWIN includes from private.h since it is now defined in
+    include/GL/xmesa.h
+NET CHANGE: smakefile
+
+* mesa/src-glu
+Nov. 25, 1995 v 1.2.4
+  - created smakefile
+NET CHANGE: smakefile
+
+* mesa/src-aux
+Nov. 25, 1995 v 1.2.4
+  - added the necessary pragma calls for X functions to the following:
+    glaux.c
+  - created smakefile
+NET CHANGE: glaux.c, smakefile
+
+* mesa/demos
+Nov. 25, 1995 v 1.2.4
+  - added the necessary pragma calls for X functions to the following:
+    xdemo.c, glxdemo.c, offset.c
+  - created smakefile
+  - put #ifndef AMIWIN ... #endif around sleep() calls in xdemo.c since 
+    they are not part of AmigaDOS.
+Dec.  1, 1995 v 1.2.5
+  - removed AMIWIN defines from xdemo.c, glxdemo.c, offset.c since
+    already defined in include/GL/xmesa.h
+  - modified Smakefile to include header and includes from the AmiTCP4.0
+    net.lib linkable library to provide unix-compatible sys/time.h and
+    the sleep() function
+    - removed AMIWIN defines in xdemo.c since sleep() now defined
+NET CHANGE: smakefile
+
+* mesa/samples
+Nov. 25, 1995 v 1.2.4
+  - added the necessary pragma calls for X functions to the following:
+    oglinfo.c
+  - created smakefile
+  - put #ifndef AMIWIN ... #endif around sleep() in blendxor.c
+  - removed olympic from smakefile targets since <sys/time.h> not defined
+Dec.  1, 1995 v 1.2.5
+  - removed AMIWIN defines from oglinfo.c, since already defined in 
+    include/GL/xmesa.h
+  - modified Smakefile to include header and includes from the AmiTCP4.0
+    net.lib linkable library to provide unix-compatible sys/time.h and
+    the sleep() function
+    - removed AMIWIN defines in blendxor.c for sleep()
+    - added AMIWIN defines around _MACHTEN_ in olympic.c since xrandom()
+      functions are not defined in any libraries
+    - added olympic back into the Smakefile targets
+NET CHANGE: smakefile, olympic.c
+
+* mesa/book
+Nov. 25, 1995 v 1.2.4
+- created smakefile
+- removed accpersp and dof from smakefile targets since the SAS/C compile seems to
+  confuse the near,far variables with near/far memory models.
+NET CHANGE: smakefile
+
+* mesa/windows
+Dec.  1, 1995 v 1.2.5
+- Removed directory to save space since this is only needed for Windows based 
+  machines.