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Darwin haptic: Fixed a static analysis warning if axes==0.

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This commit is contained in:
Ryan C. Gordon 2015-05-26 12:47:03 -04:00
parent f99d6e1df8
commit 37f4eb5379
1 changed files with 33 additions and 30 deletions
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63
src/haptic/darwin/SDL_syshaptic.c
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@ -771,18 +771,18 @@ static int
SDL_SYS_ToFFEFFECT(SDL_Haptic * haptic, FFEFFECT * dest, SDL_HapticEffect * src) SDL_SYS_ToFFEFFECT(SDL_Haptic * haptic, FFEFFECT * dest, SDL_HapticEffect * src)
{ {
int i; int i;
FFCONSTANTFORCE *constant; FFCONSTANTFORCE *constant = NULL;
FFPERIODIC *periodic; FFPERIODIC *periodic = NULL;
FFCONDITION *condition; /* Actually an array of conditions - one per axis. */ FFCONDITION *condition = NULL; /* Actually an array of conditions - one per axis. */
FFRAMPFORCE *ramp; FFRAMPFORCE *ramp = NULL;
FFCUSTOMFORCE *custom; FFCUSTOMFORCE *custom = NULL;
FFENVELOPE *envelope; FFENVELOPE *envelope = NULL;
SDL_HapticConstant *hap_constant; SDL_HapticConstant *hap_constant = NULL;
SDL_HapticPeriodic *hap_periodic; SDL_HapticPeriodic *hap_periodic = NULL;
SDL_HapticCondition *hap_condition; SDL_HapticCondition *hap_condition = NULL;
SDL_HapticRamp *hap_ramp; SDL_HapticRamp *hap_ramp = NULL;
SDL_HapticCustom *hap_custom; SDL_HapticCustom *hap_custom = NULL;
DWORD *axes; DWORD *axes = NULL;
/* Set global stuff. */ /* Set global stuff. */
SDL_memset(dest, 0, sizeof(FFEFFECT)); SDL_memset(dest, 0, sizeof(FFEFFECT));
@ -911,26 +911,29 @@ SDL_SYS_ToFFEFFECT(SDL_Haptic * haptic, FFEFFECT * dest, SDL_HapticEffect * src)
case SDL_HAPTIC_DAMPER: case SDL_HAPTIC_DAMPER:
case SDL_HAPTIC_INERTIA: case SDL_HAPTIC_INERTIA:
case SDL_HAPTIC_FRICTION: case SDL_HAPTIC_FRICTION:
hap_condition = &src->condition; if (dest->cAxes > 0) {
condition = SDL_malloc(sizeof(FFCONDITION) * dest->cAxes); hap_condition = &src->condition;
if (condition == NULL) { condition = SDL_malloc(sizeof(FFCONDITION) * dest->cAxes);
return SDL_OutOfMemory(); if (condition == NULL) {
} return SDL_OutOfMemory();
SDL_memset(condition, 0, sizeof(FFCONDITION)); }
SDL_memset(condition, 0, sizeof(FFCONDITION));
/* Specifics */ /* Specifics */
for (i = 0; i < dest->cAxes; i++) { for (i = 0; i < dest->cAxes; i++) {
condition[i].lOffset = CONVERT(hap_condition->center[i]); condition[i].lOffset = CONVERT(hap_condition->center[i]);
condition[i].lPositiveCoefficient = condition[i].lPositiveCoefficient =
CONVERT(hap_condition->right_coeff[i]); CONVERT(hap_condition->right_coeff[i]);
condition[i].lNegativeCoefficient = condition[i].lNegativeCoefficient =
CONVERT(hap_condition->left_coeff[i]); CONVERT(hap_condition->left_coeff[i]);
condition[i].dwPositiveSaturation = condition[i].dwPositiveSaturation =
CCONVERT(hap_condition->right_sat[i] / 2); CCONVERT(hap_condition->right_sat[i] / 2);
condition[i].dwNegativeSaturation = condition[i].dwNegativeSaturation =
CCONVERT(hap_condition->left_sat[i] / 2); CCONVERT(hap_condition->left_sat[i] / 2);
condition[i].lDeadBand = CCONVERT(hap_condition->deadband[i] / 2); condition[i].lDeadBand = CCONVERT(hap_condition->deadband[i] / 2);
}
} }
dest->cbTypeSpecificParams = sizeof(FFCONDITION) * dest->cAxes; dest->cbTypeSpecificParams = sizeof(FFCONDITION) * dest->cAxes;
dest->lpvTypeSpecificParams = condition; dest->lpvTypeSpecificParams = condition;