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Fixes for Tap Delay thread

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- Now signals TD thread on each touch event that resulted in a change to the buttons.trackingIndex or a change to
      the chosen button (buttons.touchDownButton, buttons.northButton, or buttons.southButton)
    - Uses mutex (un)locking to avoid races around buttons.trackingIndex and chosen button
    - Adds an equal delay on TD thread loop finish to ensure the touchDown/touchUp or touchDown/move/touchUp event
      sequence is the same basic duration as received
This commit is contained in:
Aaron Culliney 2015-06-14 13:59:51 -07:00
parent 5e1d8552ef
commit 20bbfcd286
1 changed files with 33 additions and 13 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

46
src/video/gltouchjoy.c
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@ -233,45 +233,64 @@ static inline void _setup_button_object_with_char(char newChar) {
// Tap Delay Thread : delays processing of touch-down so that a different joystick button/key can be fired
static inline void _schedule_button_tap(void) {
static inline void _signal_tap_delay(void) {
pthread_mutex_lock(&buttons.tapDelayMutex);
pthread_cond_signal(&buttons.tapDelayCond);
pthread_mutex_unlock(&buttons.tapDelayMutex);
}
static void *_button_tap_delayed_thread(void *dummyptr) {
LOG(">>> [DELAYEDTAP] thread start ...");
pthread_mutex_lock(&buttons.tapDelayMutex);
do {
LOG(">>> [DELAYEDTAP] sleeping ...");
pthread_cond_wait(&buttons.tapDelayCond, &buttons.tapDelayMutex);
LOG(">>> [DELAYEDTAP] begin ...");
if (UNLIKELY(isShuttingDown)) {
break;
}
struct timespec ts = { .tv_sec=0, .tv_nsec=buttons.tapDelayNanos };
nanosleep(&ts, NULL);
// sleep for the configured delay time
pthread_mutex_unlock(&buttons.tapDelayMutex);
nanosleep(&ts, NULL);
pthread_mutex_lock(&buttons.tapDelayMutex);
// set the emulator's joystick button values until touch up
do {
LOG(">>> [DELAYEDTAP] waking up ...");
joy_button0 = buttons.currButtonValue0;
joy_button1 = buttons.currButtonValue1;
_setup_button_object_with_char(buttons.currButtonChar);
struct timespec ts = { .tv_sec=0, .tv_nsec=buttons.tapDelayNanos };
nanosleep(&ts, NULL);
if (UNLIKELY(isShuttingDown)) {
if ( (buttons.trackingIndex == TOUCHED_NONE) || isShuttingDown) {
break;
}
pthread_cond_wait(&buttons.tapDelayCond, &buttons.tapDelayMutex);
} while (buttons.trackingIndex != TOUCHED_NONE);
joy_button0 = 0x0;
joy_button1 = 0x0;
LOG(">>> [DELAYEDTAP] looping ...");
} while (1);
if (UNLIKELY(isShuttingDown)) {
break;
}
// delay the ending of button tap or touch/move event by the configured delay time
pthread_mutex_unlock(&buttons.tapDelayMutex);
nanosleep(&ts, NULL);
pthread_mutex_lock(&buttons.tapDelayMutex);
joy_button0 = 0x0;
joy_button1 = 0x0;
LOG(">>> [DELAYEDTAP] end ...");
} while (1);
pthread_mutex_unlock(&buttons.tapDelayMutex);
LOG(">>> [DELAYEDTAP] thread exit ...");
return NULL;
}
@ -492,6 +511,7 @@ static inline void _set_current_joy_button_values(int theButton) {
buttons.currButtonValue0 = 0;
buttons.currButtonValue1 = 0;
}
_signal_tap_delay();
}
static inline void _move_button_axis(int x, int y) {
@ -545,7 +565,6 @@ static bool gltouchjoy_onTouchEvent(interface_touch_event_t action, int pointer_
buttonConsumed = true;
buttons.trackingIndex = pointer_idx;
_set_current_joy_button_values(buttons.touchDownButton);
_schedule_button_tap();
buttons.centerX = (int)x;
buttons.centerY = (int)y;
_reset_model_position(buttons.model, x, y, BUTTON_OBJ_HALF_W, BUTTON_OBJ_HALF_H);
@ -595,6 +614,7 @@ static bool gltouchjoy_onTouchEvent(interface_touch_event_t action, int pointer_
--axes.trackingIndex;
}
buttons.trackingIndex = TOUCHED_NONE;
_signal_tap_delay();
LOG("---TOUCH %sUP (buttons went up)%s", (action == TOUCH_UP ? "" : "POINTER "), (resetIndex ? " (reset axis index!)" : ""));
} else {
// not tracking tap/gestures originating from control-gesture portion of screen