/* Function to scan the system for joysticks.
* Joystick 0 should be the system default joystick.
* This function should return the number of available joysticks, or -1
* on an unrecoverable fatal error.
*/
int SDL_SYS_JoystickInit(void)
{
static ISpDeviceClass classes[4] = {
kISpDeviceClass_Joystick,
kISpDeviceClass_Gamepad,
kISpDeviceClass_Wheel,
0
};
OSErr err;
int i;
UInt32 count, numJoysticks;
if ( (Ptr)0 == (Ptr)ISpStartup ) {
SDL_SetError("InputSprocket not installed");
return -1; // InputSprocket not installed
}
if( (Ptr)0 == (Ptr)ISpGetVersion ) {
SDL_SetError("InputSprocket not version 1.1 or newer");
return -1; // old version of ISp (not at least 1.1)
}
ISpStartup();
/* Get all the joysticks */
numJoysticks = 0;
for ( i=0; classes[i]; ++i ) {
count = 0;
err = ISpDevices_ExtractByClass(
classes[i],
MAX_JOYSTICKS-numJoysticks,
&count,
&SYS_Joysticks[numJoysticks]);
numJoysticks += count;
}
for(i = 0; i < numJoysticks; i++)
{
ISpDevice_GetDefinition(
SYS_Joysticks[i], sizeof(ISpDeviceDefinition),
&SYS_DevDef[i]);
err = ISpElementList_New(
0, NULL,
&SYS_Elements[i], 0);
if (err) {
SDL_OutOfMemory();
return -1;
}
ISpDevice_GetElementList(
SYS_Joysticks[i],
&SYS_Elements[i]);
}
ISpDevices_Deactivate(numJoysticks, SYS_Joysticks);
return numJoysticks;
}
/* Function to close a joystick after use */
void SDL_SYS_JoystickClose(SDL_Joystick *joystick)
{
int index;
index = joystick->index;
ISpDevices_Deactivate(
1,
&SYS_Joysticks[index]);
}
