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/wave.c b/Alc/wave.c
index 62c3ffc2..61a93570 100644
--- a/Alc/wave.c
+++ b/Alc/wave.c
@@ -334,6 +334,11 @@ static ALCboolean wave_open_capture(ALCdevice *pDevice, const ALCchar *deviceNam
     return ALC_FALSE;
 }
 
+static ALuint64 wave_get_time(ALCdevice *Device)
+{
+    return Device->SamplesPlayed * 1000000000 / Device->Frequency;
+}
+
 
 BackendFuncs wave_funcs = {
     wave_open_playback,
@@ -345,7 +350,8 @@ BackendFuncs wave_funcs = {
     NULL,
     NULL,
     NULL,
-    NULL
+    NULL,
+    wave_get_time
 };
 
 void alc_wave_init(BackendFuncs *func_list)