Change the backend getLatency method to return the clock time too

This will also allow backends to better synchronize the tracked clock time with
the device output latency, without necessarily needing to lock if the backend
API can allow for it.

1 files changed, 7 insertions, 5 deletions

diff --git a/Alc/backends/jack.c b/Alc/backends/jack.c
index 69d1277a..cfdc62e8 100644
--- a/Alc/backends/jack.c
+++ b/Alc/backends/jack.c
@@ -148,7 +148,7 @@ static ALCboolean ALCjackPlayback_start(ALCjackPlayback *self);
 static void ALCjackPlayback_stop(ALCjackPlayback *self);
 static DECLARE_FORWARD2(ALCjackPlayback, ALCbackend, ALCenum, captureSamples, void*, ALCuint)
 static DECLARE_FORWARD(ALCjackPlayback, ALCbackend, ALCuint, availableSamples)
-static ALint64 ALCjackPlayback_getLatency(ALCjackPlayback *self);
+static ClockLatency ALCjackPlayback_getClockLatency(ALCjackPlayback *self);
 static void ALCjackPlayback_lock(ALCjackPlayback *self);
 static void ALCjackPlayback_unlock(ALCjackPlayback *self);
 DECLARE_DEFAULT_ALLOCATORS(ALCjackPlayback)
@@ -506,16 +506,18 @@ static void ALCjackPlayback_stop(ALCjackPlayback *self)
 }
 
 
-static ALint64 ALCjackPlayback_getLatency(ALCjackPlayback *self)
+static ClockLatency ALCjackPlayback_getClockLatency(ALCjackPlayback *self)
 {
     ALCdevice *device = STATIC_CAST(ALCbackend, self)->mDevice;
-    ALint64 latency;
+    ClockLatency ret;
 
     ALCjackPlayback_lock(self);
-    latency = ll_ringbuffer_read_space(self->Ring);
+    ret.ClockTime = GetDeviceClockTime(device);
+    ret.Latency = ll_ringbuffer_read_space(self->Ring) * DEVICE_CLOCK_RES /
+                  device->Frequency;
     ALCjackPlayback_unlock(self);
 
-    return latency * 1000000000 / device->Frequency;
+    return ret;
 }