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MacOS X joystick fix

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--HG--
extra : convert_revision : svn%3Ac70aab31-4412-0410-b14c-859654838e24/trunk%40618
This commit is contained in:
Sam Lantinga 2003-05-03 15:36:10 +00:00
parent e2b0c74800
commit 313819cc86
1 changed files with 18 additions and 10 deletions
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28
src/joystick/darwin/SDL_sysjoystick.c
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@ -752,35 +752,43 @@ void SDL_SYS_JoystickUpdate(SDL_Joystick *joystick)
Uint8 pos = 0;
value = HIDGetElementValue(device, element);
if (element->max == 3) /* 4 position hatswitch - scale up value */
value *= 2;
else if (element->max != 7) /* Neither a 4 nor 8 positions - fall back to default position (centered) */
value = -1;
switch(value)
{
case 0:
pos = SDL_HAT_CENTERED;
break;
case 1:
pos = SDL_HAT_UP;
break;
case 2:
case 1:
pos = SDL_HAT_RIGHTUP;
break;
case 3:
case 2:
pos = SDL_HAT_RIGHT;
break;
case 4:
case 3:
pos = SDL_HAT_RIGHTDOWN;
break;
case 5:
case 4:
pos = SDL_HAT_DOWN;
break;
case 6:
case 5:
pos = SDL_HAT_LEFTDOWN;
break;
case 7:
case 6:
pos = SDL_HAT_LEFT;
break;
case 8:
case 7:
pos = SDL_HAT_LEFTUP;
break;
default:
/* Every other value is mapped to center. We do that because some
* joysticks use 8 and some 15 for this value, and apparently
* there are even more variants out there - so we try to be generous.
*/
pos = SDL_HAT_CENTERED;
break;
}
if ( pos != joystick->hats[i] )
SDL_PrivateJoystickHat(joystick, i, pos);