Work on pause and seek

Signed-off-by: Andrew Opalach <andrew@akon.city>

2 files changed, 22 insertions, 2 deletions

diff --git a/src/buffer/clock.c b/src/buffer/clock.c
index 705a525..624c534 100644
--- a/src/buffer/clock.c
+++ b/src/buffer/clock.c
@@ -27,6 +27,25 @@ void camu_clock_set(struct camu_clock *clock, f64 base)
     clock->paused_at = 0.0;
 }
 
+void camu_clock_seek(struct camu_clock *clock, f64 base, u64 target)
+{
+    clock->base = base;
+    clock->offset = 0.0;
+    f64 tick = aki_get_tick();
+    if (clock->paused_at == -1.0) {
+        // We are safe to directly edit the tick here.
+        if (target == 0) {
+            al_atomic_store(f64)(&clock->tick, -1.0, AL_ATOMIC_RELAXED);
+        } else {
+            tick = calc_tick_offset(tick, aki_get_timestamp(), target);
+            al_atomic_store(f64)(&clock->tick, tick, AL_ATOMIC_RELAXED);
+        }
+    } else {
+        al_atomic_store(f64)(&clock->pause, PAUSED, AL_ATOMIC_RELAXED);
+        clock->paused_at = 0.0;
+    }
+}
+
 void camu_clock_offset(struct camu_clock *clock, f64 amount)
 {
     clock->offset += amount;
diff --git a/src/buffer/clock.h b/src/buffer/clock.h
index aae87cc..86eba5e 100644
--- a/src/buffer/clock.h
+++ b/src/buffer/clock.h
@@ -39,10 +39,11 @@ struct camu_clock {
 
 void camu_clock_init(struct camu_clock *clock, void (*callback)(void *, u8), void *userdata);
 void camu_clock_set(struct camu_clock *clock, f64 base);
+void camu_clock_seek(struct camu_clock *clock, f64 base, u64 target);
 void camu_clock_offset(struct camu_clock *clock, f64 amount);
 
-void camu_clock_pause(struct camu_clock *clock, u64 ts);
-void camu_clock_resume(struct camu_clock *clock, u64 ts);
+void camu_clock_pause(struct camu_clock *clock, u64 target);
+void camu_clock_resume(struct camu_clock *clock, u64 target);
 bool camu_clock_is_armed(struct camu_clock *clock);
 bool camu_clock_is_paused(struct camu_clock *clock);