Add a backend callback to get the device time

The method should monotonically count the number of nanoseconds the device has
active contexts

1 files changed, 7 insertions, 1 deletions

diff --git a/Alc/oss.c b/Alc/oss.c
index ed96fa17..9f3e5ae2 100644
--- a/Alc/oss.c
+++ b/Alc/oss.c
@@ -465,6 +465,11 @@ static ALCuint oss_available_samples(ALCdevice *pDevice)
     return RingBufferSize(data->ring);
 }
 
+static ALuint64 oss_get_time(ALCdevice *Device)
+{
+    return Device->SamplesPlayed * 1000000000 / Device->Frequency;
+}
+
 
 BackendFuncs oss_funcs = {
     oss_open_playback,
@@ -476,7 +481,8 @@ BackendFuncs oss_funcs = {
     oss_start_capture,
     oss_stop_capture,
     oss_capture_samples,
-    oss_available_samples
+    oss_available_samples,
+    oss_get_time
 };
 
 void alc_oss_init(BackendFuncs *func_list)