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(Android) Refactor android_input_set_rumble to be safer

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This commit is contained in:
twinaphex 2019-07-18 20:47:51 +02:00
parent f9f118271a
commit 61746c8179
1 changed files with 61 additions and 52 deletions
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113
input/drivers/android_input.c
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@ -1714,79 +1714,88 @@ static void android_input_grab_mouse(void *data, bool state)
(void)state;
}
static void android_input_set_rumble_internal(
uint16_t strength,
uint16_t *last_strength_strong,
uint16_t *last_strength_weak,
uint16_t *last_strength,
int8_t id,
enum retro_rumble_effect effect
)
{
JNIEnv *env = (JNIEnv*)jni_thread_getenv();
uint16_t new_strength = 0;
if (!env)
return;
if (effect == RETRO_RUMBLE_STRONG)
{
new_strength = strength | *last_strength_weak;
*last_strength_strong = strength;
}
else if (effect == RETRO_RUMBLE_WEAK)
{
new_strength = strength | *last_strength_strong;
*last_strength_weak = strength;
}
if (new_strength != *last_strength)
{
/* trying to send this value as a JNI param without
* storing it first was causing 0 to be seen on the other side ?? */
int strength_final = (255.0f / 65535.0f) * (float)new_strength;
CALL_VOID_METHOD_PARAM(env, g_android->activity->clazz,
g_android->doVibrate, (jint)id, (jint)RETRO_RUMBLE_STRONG, (jint)strength_final, (jint)0);
*last_strength = new_strength;
}
}
static bool android_input_set_rumble(void *data, unsigned port,
enum retro_rumble_effect effect, uint16_t strength)
{
android_input_t *android = (android_input_t*)data;
settings_t *settings = config_get_ptr();
JNIEnv *env = (JNIEnv*)jni_thread_getenv();
if (!android || !env || !g_android || !g_android->doVibrate)
if (!g_android || !g_android->doVibrate)
return false;
if (settings->bools.enable_device_vibration)
{
static uint16_t last_strength_strong = 0;
static uint16_t last_strength_weak = 0;
static uint16_t last_strength = 0;
uint16_t new_strength = 0;
static uint16_t last_strength_weak = 0;
static uint16_t last_strength = 0;
if (port != 0)
return false;
if (effect == RETRO_RUMBLE_STRONG)
{
new_strength = strength | last_strength_weak;
last_strength_strong = strength;
}
else if (effect == RETRO_RUMBLE_WEAK)
{
new_strength = strength | last_strength_strong;
last_strength_weak = strength;
}
if (new_strength != last_strength)
{
/* trying to send this value as a JNI param without storing it first was causing 0 to be seen on the other side ?? */
int strength_final = (255.0f / 65535.0f) * (float)new_strength;
CALL_VOID_METHOD_PARAM(env, g_android->activity->clazz,
g_android->doVibrate, (jint)-1, (jint)RETRO_RUMBLE_STRONG, (jint)strength_final, (jint)0);
last_strength = new_strength;
}
android_input_set_rumble_internal(
strength,
&last_strength_strong,
&last_strength_weak,
&last_strength,
-1,
effect);
return true;
}
else
{
uint16_t new_strength = 0;
state_device_t *state = &android->pad_states[port];
android_input_t *android = (android_input_t*)data;
state_device_t *state = android ? &android->pad_states[port] : NULL;
if (effect == RETRO_RUMBLE_STRONG)
if (state)
{
new_strength = strength | state->rumble_last_strength_weak;
state->rumble_last_strength_strong = strength;
android_input_set_rumble_internal(
strength,
&state->rumble_last_strength_strong,
&state->rumble_last_strength_weak,
&state->rumble_last_strength,
state->id,
effect);
return true;
}
else if (effect == RETRO_RUMBLE_WEAK)
{
new_strength = strength | state->rumble_last_strength_strong;
state->rumble_last_strength_weak = strength;
}
if (new_strength != state->rumble_last_strength)
{
/* trying to send this value as a JNI param without storing it first was causing 0 to be seen on the other side ?? */
int strength_final = (255.0f / 65535.0f) * (float)new_strength;
int id = state->id;
CALL_VOID_METHOD_PARAM(env, g_android->activity->clazz,
g_android->doVibrate, (jint)id, (jint)RETRO_RUMBLE_STRONG, (jint)strength_final, (jint)0);
state->rumble_last_strength = new_strength;
}
return true;
}
return false;