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Add extra checks to reduce unexcpected gamepad input

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This commit is contained in:
Iwan Timmer
2017-06-21 17:38:18 +02:00
parent 1770b09a23
commit 1b4e36646d
1 changed files with 5 additions and 3 deletions
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8
src/input/evdev.c
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@@ -214,7 +214,7 @@ static bool evdev_handle_event(struct input_event *ev, struct input_device *dev)
} else {
int mouseCode = 0;
short gamepadCode = 0;
int index = dev->key_map[ev->code - BTN_MISC];
int index = ev->code > BTN_MISC && ev->code < (BTN_MISC + KEY_MAX) ? dev->key_map[ev->code - BTN_MISC] : -1;
switch (ev->code) {
case BTN_LEFT:
@@ -311,8 +311,8 @@ static bool evdev_handle_event(struct input_event *ev, struct input_device *dev)
case ABS_HAT2Y:
case ABS_HAT3X:
case ABS_HAT3Y:
dev->hats_state[hat_index][hat_dir_index] = ev->value < 0 ? 0 : (ev->value == 0 ? 1 : 2);
int hat_state = hat_constants[dev->hats_state[hat_index][1]][dev->hats_state[hat_index][0]];
dev->hats_state[hat_index][hat_dir_index] = ev->value < 0 ? -1 : (ev->value == 0 ? 0 : 1);
int hat_state = hat_constants[dev->hats_state[hat_index][1] + 1][dev->hats_state[hat_index][0] + 1];
if (hat_index == dev->map->hat_dpup)
set_hat(dev->buttonFlags, UP_FLAG, hat_state, dev->map->hat_dir_dpup);
if (hat_index == dev->map->hat_dpdown)
@@ -463,6 +463,8 @@ void evdev_create(const char* device, struct mapping* mappings, bool verbose) {
devices[dev].fd = fd;
devices[dev].dev = evdev;
devices[dev].map = mappings;
memset(&devices[dev].key_map, -1, sizeof(devices[dev].key_map));
memset(&devices[dev].abs_map, -1, sizeof(devices[dev].abs_map));
int nbuttons = 0;
for (int i = BTN_JOYSTICK; i < KEY_MAX; ++i) {