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pineappleEA
2021-12-07 02:20:09 +01:00
parent c2ae6d480a
commit c4fa174d53
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44
externals/SDL/docs/README-os2.md vendored
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@@ -3,9 +3,9 @@ Simple DirectMedia Layer 2 for OS/2 & eComStation
SDL port for OS/2, authored by Andrey Vasilkin <digi@os2.snc.ru>, 2016
OpenGL, joystick and audio capture not supported by this port.
OpenGL and audio capture not supported by this port.
Additional environment variables (optional) for OS/2 version:
Additional optional environment variables:
SDL_AUDIO_SHARE
Values: 0 or 1, default is 0
@@ -33,7 +33,7 @@ Compiling:
Open Watcom 1.9 or newer is tested. For the new Open Watcom V2 fork, see:
https://github.com/open-watcom/ and https://open-watcom.github.io
WATCOM ervironment variable must to be set to the Open Watcom install
WATCOM environment variable must to be set to the Open Watcom install
directory. To compile, run: wmake -f Makefile.os2
@@ -52,3 +52,41 @@ Installing:
version installed, close all SDL2 applications before replacing the old
copy. Also make sure that any other older versions of DLLs are removed
from your system.
Joysticks in SDL2:
------------------
The joystick code in SDL2 is a direct forward-port from the SDL-1.2 version.
Here is the original documentation from SDL-1.2:
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:
SET SDL_OS2_JOYSTICK=[JOYSTICK_NAME] [AXES] [BUTTONS] [HATS] [BALLS]
So, it you have a Gravis GamePad with 4 axes, 2 buttons, 2 hats and 0 balls,
the line should be:
SET SDL_OS2_JOYSTICK=Gravis_GamePad 4 2 2 0
If you want to add spaces in your joystick name, just surround it with
quotes or double-quotes:
SET SDL_OS2_JOYSTICK='Gravis GamePad' 4 2 2 0
or
SET SDL_OS2_JOYSTICK="Gravis GamePad" 4 2 2 0
Note 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.