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diff -u -r1.13 -r1.14
--- SDL12/src/joystick/linux/SDL_sysjoystick.c 2004/01/04 16:49:18 1.13
+++ SDL12/src/joystick/linux/SDL_sysjoystick.c 2004/03/05 15:09:18 1.14
@@ -22,7 +22,7 @@
#ifdef SAVE_RCSID
static char rcsid =
- "@(#) $Id: 1.2.7-joystick.patch,v 1.1 2004/06/07 07:48:05 mr_bones_ Exp $";
+ "@(#) $Id: 1.2.7-joystick.patch,v 1.1 2004/06/07 07:48:05 mr_bones_ Exp $";
#endif
/* This is the system specific header for the SDL joystick API */
@@ -383,7 +383,7 @@
static SDL_bool EV_ConfigJoystick(SDL_Joystick *joystick, int fd)
{
- int i;
+ int i, t;
unsigned long keybit[40];
unsigned long absbit[40];
unsigned long relbit[40];
@@ -436,12 +436,18 @@
joystick->hwdata->abs_correct[i].used = 0;
} else {
joystick->hwdata->abs_correct[i].used = 1;
- joystick->hwdata->abs_correct[i].coef[0] =
- (values[2] + values[1]) / 2 - values[4];
- joystick->hwdata->abs_correct[i].coef[1] =
- (values[2] + values[1]) / 2 + values[4];
- joystick->hwdata->abs_correct[i].coef[2] =
- (1 << 29) / ((values[2] - values[1]) / 2 - 2 * values[4]);
+ t = (2 - values[4]);
+ if ( t != 0 ) {
+ joystick->hwdata->abs_correct[i].coef[0] = (values[2] + values[1]) / t;
+ }
+ t = (2 + values[4]);
+ if ( t != 0 ) {
+ joystick->hwdata->abs_correct[i].coef[1] = (values[2] + values[1]) / t;
+ }
+ t = ((values[2] - values[1]) / 2 - 2 * values[4]);
+ if ( t != 0 ) {
+ joystick->hwdata->abs_correct[i].coef[2] = (1 << 29) / t;
+ }
}
++joystick->naxes;
}
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