/*
* Updates an effect.
*/
int
SDL_SYS_HapticUpdateEffect(SDL_Haptic * haptic,
struct haptic_effect *effect,
SDL_HapticEffect * data)
{
HRESULT ret;
FFEffectParameterFlag flags;
FFEFFECT temp;
/* Get the effect. */
SDL_memset(&temp, 0, sizeof(FFEFFECT));
if (SDL_SYS_ToFFEFFECT(haptic, &temp, data) < 0) {
goto err_update;
}
/* Set the flags. Might be worthwhile to diff temp with loaded effect and
* only change those parameters. */
flags = FFEP_DIRECTION |
FFEP_DURATION |
FFEP_ENVELOPE |
FFEP_STARTDELAY |
FFEP_TRIGGERBUTTON |
FFEP_TRIGGERREPEATINTERVAL | FFEP_TYPESPECIFICPARAMS;
/* Create the actual effect. */
ret = FFEffectSetParameters(effect->hweffect->ref, &temp, flags);
if (ret != FF_OK) {
SDL_SetError("Haptic: Unable to update effect: %s.", FFStrError(ret));
goto err_update;
}
/* Copy it over. */
SDL_SYS_HapticFreeFFEFFECT(&effect->hweffect->effect, data->type);
SDL_memcpy(&effect->hweffect->effect, &temp, sizeof(FFEFFECT));
return 0;
err_update:
SDL_SYS_HapticFreeFFEFFECT(&temp, data->type);
return -1;
}
/*
* Frees the effect.
*/
void
SDL_SYS_HapticDestroyEffect(SDL_Haptic * haptic, struct haptic_effect *effect)
{
HRESULT ret;
ret = FFDeviceReleaseEffect(haptic->hwdata->device, effect->hweffect->ref);
if (ret != FF_OK) {
SDL_SetError("Haptic: Error removing the effect from the device: %s.",
FFStrError(ret));
}
SDL_SYS_HapticFreeFFEFFECT(&effect->hweffect->effect,
effect->effect.type);
SDL_free(effect->hweffect);
effect->hweffect = NULL;
}
/*
* Creates a new haptic effect.
*/
int
SDL_SYS_HapticNewEffect(SDL_Haptic * haptic, struct haptic_effect *effect,
SDL_HapticEffect * base)
{
HRESULT ret;
CFUUIDRef type;
/* Alloc the effect. */
effect->hweffect = (struct haptic_hweffect *)
SDL_malloc(sizeof(struct haptic_hweffect));
if (effect->hweffect == NULL) {
SDL_OutOfMemory();
goto err_hweffect;
}
/* Get the type. */
type = SDL_SYS_HapticEffectType(base->type);
if (type == NULL) {
goto err_hweffect;
}
/* Get the effect. */
if (SDL_SYS_ToFFEFFECT(haptic, &effect->hweffect->effect, base) < 0) {
goto err_effectdone;
}
/* Create the actual effect. */
ret = FFDeviceCreateEffect(haptic->hwdata->device, type,
&effect->hweffect->effect,
&effect->hweffect->ref);
if (ret != FF_OK) {
SDL_SetError("Haptic: Unable to create effect: %s.", FFStrError(ret));
goto err_effectdone;
}
return 0;
err_effectdone:
SDL_SYS_HapticFreeFFEFFECT(&effect->hweffect->effect, base->type);
err_hweffect:
if (effect->hweffect != NULL) {
SDL_free(effect->hweffect);
effect->hweffect = NULL;
}
return -1;
}
