diff options
| -rw-r--r-- | hwc/sw_vsync.c | 8 |
1 files changed, 7 insertions, 1 deletions
diff --git a/hwc/sw_vsync.c b/hwc/sw_vsync.c index cf24b31..fce6d37 100644 --- a/hwc/sw_vsync.c +++ b/hwc/sw_vsync.c @@ -60,10 +60,16 @@ static void *vsync_loop(void *data) for (;;) { pthread_mutex_lock(&vsync_mutex); - period = vsync_rate; /* re-read rate */ while (!vsync_loop_active) { pthread_cond_wait(&vsync_cond, &vsync_mutex); } + /* the vsync_rate should be re-read after + * user sets the vsync_rate by calling start_sw_vsync + * explicitly. This is guaranteed by re-reading it + * after the vsync_cond is signalled. + */ + period = vsync_rate; /* re-read rate */ + pthread_mutex_unlock(&vsync_mutex); clock_gettime(CLOCK_MONOTONIC, &tp); |