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OS/2 port!
This was mostly, if not entirely, written by "Doodle" and "Caetano": doodle@scenergy.dfmk.hu daniel@caetano.eng.br --ryan.
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=========== | ||
SDL on OS/2 | ||
=========== | ||
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Last updated on Oct 02, 2005. | ||
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1. How to compile? | ||
------------------ | ||
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To compile this, you'll need the followings installed: | ||
- The OS/2 Developer's Toolkit | ||
- The OpenWatcom compiler | ||
(http://www.openwatcom.org) | ||
- The FSLib library | ||
(ftp://ftp.netlabs.org/pub/SDL) | ||
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Please edit the second, fourth and fifth lines of setvars.cmd file | ||
to set the folders where the toolkit, the OW compiler and the FSLib are. | ||
You won't need NASM yet (The Netwide Assembler), you can leave that line. | ||
Run setvars.cmd, and you should get a shell in which you can | ||
compile SDL. | ||
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Check the "Watcom.mif" file. This is the file which is included by all the | ||
Watcom makefiles, so changes here will affect the whole build process. | ||
There is a line in there which determines if the resulting SDL.DLL will be | ||
a 'debug' or a 'release' build. The 'debug' version is full of printf()'s, | ||
so if something goes wrong, its output can help a lot for debugging. | ||
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Then go to the 'src' folder, and run "wmake -f makefile.wat". | ||
This should create the SDL.DLL and the corresponding SDL.LIB file there. | ||
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To test applications, it's a good idea to use the 'debug' build of SDL, and | ||
redirect the standard output and standard error output to files, to see what | ||
happens internally in SDL. | ||
(like: testsprite >stdout.txt 2>stderr.txt) | ||
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To rebuild SDL, use the following commands in 'src' folder: | ||
wmake -f makefile.wat clean | ||
wmake -f makefile.wat | ||
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2. How to compile the testapps? | ||
------------------------------- | ||
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Once you have SDL.DLL compiled, navigate into the 'test' folder, copy in there | ||
the newly built SDL.DLL, and copy in there FSLib.DLL. | ||
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Then run "wmake -f makefile.wat" in there to compile some of the testapps. | ||
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3. What is missing? | ||
------------------- | ||
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The following things are missing from this SDL implementation: | ||
- MMX, SSE and 3DNOW! optimized video blitters? | ||
- HW Video surfaces | ||
- OpenGL support | ||
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4. Special Keys / Full-Screen support | ||
------------------------------------- | ||
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There are two special hot-keys implemented: | ||
- Alt+Home switches between fullscreen and windowed mode | ||
- Alt+End simulates closing the window (can be used as a Panic key) | ||
Only the LEFT Alt key will work. | ||
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5. Joysticks on SDL/2 | ||
--------------------- | ||
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The Joystick detection only works for standard joysticks (2 buttons, 2 axes | ||
and the like). Therefore, if you use a non-standard joystick, you should | ||
specify its features in the SDL_OS2_JOYSTICK environment variable in a batch | ||
file or CONFIG.SYS, so SDL applications can provide full capability to your | ||
device. The syntax is: | ||
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SET SDL_OS2_JOYSTICK=[JOYSTICK_NAME] [AXES] [BUTTONS] [HATS] [BALLS] | ||
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So, it you have a Gravis GamePad with 4 axes, 2 buttons, 2 hats and 0 balls, | ||
the line should be: | ||
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SET SDL_OS2_JOYSTICK=Gravis_GamePad 4 2 2 0 | ||
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If you want to add spaces in your joystick name, just surround it with | ||
quotes or double-quotes: | ||
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SET SDL_OS2_JOYSTICK='Gravis GamePad' 4 2 2 0 | ||
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or | ||
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SET SDL_OS2_JOYSTICK="Gravis GamePad" 4 2 2 0 | ||
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Notive However that Balls and Hats are not supported under OS/2, and the | ||
value will be ignored... but it is wise to define these correctly because | ||
in the future those can be supported. | ||
Also the number of buttons is limited to 2 when using two joysticks, | ||
4 when using one joystick with 4 axes, 6 when using a joystick with 3 axes | ||
and 8 when using a joystick with 2 axes. Notice however these are limitations | ||
of the Joystick Port hardware, not OS/2. | ||
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6. Next steps... | ||
---------------- | ||
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Things to do: | ||
- Implement missing stuffs (look for 'TODO' string in source code!) | ||
- Finish video driver (the 'wincommon' can be a good example for missing | ||
things like application icon and so on...) | ||
- Enable MMX/SSE/SSE2 acceleration functions | ||
- Rewrite CDROM support using DOS Ioctl for better support. | ||
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7. Contacts | ||
----------- | ||
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You can contact the developers for bugs: | ||
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Area Developer email | ||
General (Audio/Video/System) Doodle doodle@scenergy.dfmk.hu | ||
CDROM and Joystick Caetano daniel@caetano.eng.br | ||
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Notice however that SDL/2 is 'in development' stage so ... if you want to help, | ||
please, be our guest and contact us! | ||
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#============================================================================= | ||
# This file contains the common includes for the | ||
# Watcom makefiles to build SDL.DLL for OS/2 | ||
# | ||
# | ||
#============================================================================= | ||
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# Create debug build or not? | ||
#debug_build=defined | ||
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# Special flags for building SDL | ||
SDLCFlags = -dBUILD_SDL -dCHECK_LEAKS | ||
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# | ||
#============================================================================== | ||
# | ||
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!ifdef debug_build | ||
debugflags = -d2 -dDEBUG_BUILD | ||
!else | ||
debugflags = | ||
!endif | ||
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cflags = -zq $(debugflags) -bd -bm -bt=OS2 -5s -fpi -sg -otexan -wx -ei $(SDLCFlags) $(ExtraCFlags) | ||
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.extensions: | ||
.extensions: .lib .dll .obj .c .asm | ||
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.c.obj : .AUTODEPEND | ||
wcc386 $[* $(cflags) | ||
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.asm.obj : .AUTODEPEND | ||
nasm -t -O2 -f obj -I$(%include) $[*.asm |
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@ECHO OFF | ||
SET WATCOM=d:\watcom | ||
SET NASM=d:\nasm | ||
SET OS2TK=d:\os2tk45 | ||
SET FSLIB=d:\watcom\projects\FSLib | ||
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SET PATH=%WATCOM%\BINP;%WATCOM%\BINW;%os2tk%\bin;%NASM%;%PATH% | ||
SET INCLUDE=%WATCOM%\H;%WATCOM%\H\OS2 | ||
SET FINCLUDE=%WATCOM%\SRC\FORTRAN | ||
SET EDPATH=%WATCOM%\EDDAT | ||
SET HELP=%WATCOM%\BINP\HELP;%HELP% | ||
SET BOOKSHELF=%WATCOM%\BINP\HELP;%BOOKSHELF% | ||
SET BEGINLIBPATH=%WATCOM%\BINP\DLL | ||
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cmd | ||
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