7 files changed, 20 insertions, 20 deletions

diff --git a/Alc/backends/alsa.cpp b/Alc/backends/alsa.cpp
index e1e861db..35c1f834 100644
--- a/Alc/backends/alsa.cpp
+++ b/Alc/backends/alsa.cpp
@@ -915,7 +915,8 @@ ClockLatency ALCplaybackAlsa_getClockLatency(ALCplaybackAlsa *self)
         ERR("Failed to get pcm delay: %s\n", snd_strerror(err));
         delay = 0;
     }
-    ret.Latency = std::max<snd_pcm_sframes_t>(0, delay) * DEVICE_CLOCK_RES / device->Frequency;
+    ret.Latency  = std::chrono::seconds{std::max<snd_pcm_sframes_t>(0, delay)};
+    ret.Latency /= device->Frequency;
     ALCplaybackAlsa_unlock(self);
 
     return ret;
@@ -1286,7 +1287,8 @@ ClockLatency ALCcaptureAlsa_getClockLatency(ALCcaptureAlsa *self)
         ERR("Failed to get pcm delay: %s\n", snd_strerror(err));
         delay = 0;
     }
-    ret.Latency = std::max<snd_pcm_sframes_t>(0, delay) * DEVICE_CLOCK_RES / device->Frequency;
+    ret.Latency  = std::chrono::seconds{std::max<snd_pcm_sframes_t>(0, delay)};
+    ret.Latency /= device->Frequency;
     ALCcaptureAlsa_unlock(self);
 
     return ret;
diff --git a/Alc/backends/base.cpp b/Alc/backends/base.cpp
index 1839d353..e4c7588c 100644
--- a/Alc/backends/base.cpp
+++ b/Alc/backends/base.cpp
@@ -18,7 +18,7 @@ void ALCdevice_Unlock(ALCdevice *device)
 ClockLatency GetClockLatency(ALCdevice *device)
 {
     ClockLatency ret = V0(device->Backend,getClockLatency)();
-    ret.Latency += device->FixedLatency.count();
+    ret.Latency += device->FixedLatency;
     return ret;
 }
 
@@ -65,8 +65,8 @@ ClockLatency ALCbackend_getClockLatency(ALCbackend *self)
      * any given time during playback. Without a more accurate measurement from
      * the output, this is an okay approximation.
      */
-    ret.Latency = device->UpdateSize * DEVICE_CLOCK_RES / device->Frequency *
-                  maxu(device->NumUpdates-1, 1);
+    ret.Latency  = std::chrono::seconds{device->UpdateSize*maxi(device->NumUpdates-1, 0)};
+    ret.Latency /= device->Frequency;
 
     return ret;
 }
diff --git a/Alc/backends/base.h b/Alc/backends/base.h
index db2127ef..f4de5176 100644
--- a/Alc/backends/base.h
+++ b/Alc/backends/base.h
@@ -3,28 +3,26 @@
 
 #include "alMain.h"
 
+#include <chrono>
 #include <string>
 #include <mutex>
 
 struct ClockLatency {
-    /* FIXME: These should be nanoseconds. Will require changing backends that
-     * provide this info.
-     */
-    ALint64 ClockTime;
-    ALint64 Latency;
+    std::chrono::nanoseconds ClockTime;
+    std::chrono::nanoseconds Latency;
 };
 
 /* Helper to get the current clock time from the device's ClockBase, and
  * SamplesDone converted from the sample rate.
  */
-inline ALuint64 GetDeviceClockTime(ALCdevice *device)
+inline std::chrono::nanoseconds GetDeviceClockTime(ALCdevice *device)
 {
     using std::chrono::seconds;
     using std::chrono::nanoseconds;
     using std::chrono::duration_cast;
 
     auto ns = duration_cast<nanoseconds>(seconds{device->SamplesDone}) / device->Frequency;
-    return (device->ClockBase + ns).count();
+    return device->ClockBase + ns;
 }
 
 void ALCdevice_Lock(ALCdevice *device);
diff --git a/Alc/backends/jack.cpp b/Alc/backends/jack.cpp
index 93dbaf13..cd02388d 100644
--- a/Alc/backends/jack.cpp
+++ b/Alc/backends/jack.cpp
@@ -503,8 +503,8 @@ static ClockLatency ALCjackPlayback_getClockLatency(ALCjackPlayback *self)
 
     ALCjackPlayback_lock(self);
     ret.ClockTime = GetDeviceClockTime(device);
-    ret.Latency = ll_ringbuffer_read_space(self->Ring) * DEVICE_CLOCK_RES /
-                  device->Frequency;
+    ret.Latency  = std::chrono::seconds{ll_ringbuffer_read_space(self->Ring)};
+    ret.Latency /= device->Frequency;
     ALCjackPlayback_unlock(self);
 
     return ret;
diff --git a/Alc/backends/opensl.cpp b/Alc/backends/opensl.cpp
index 2c516021..f7ad1595 100644
--- a/Alc/backends/opensl.cpp
+++ b/Alc/backends/opensl.cpp
@@ -654,8 +654,8 @@ static ClockLatency ALCopenslPlayback_getClockLatency(ALCopenslPlayback *self)
 
     ALCopenslPlayback_lock(self);
     ret.ClockTime = GetDeviceClockTime(device);
-    ret.Latency = ll_ringbuffer_read_space(self->mRing)*device->UpdateSize *
-                  DEVICE_CLOCK_RES / device->Frequency;
+    ret.Latency  = std::chrono::seconds{ll_ringbuffer_read_space(self->mRing)*device->UpdateSize};
+    ret.Latency /= device->Frequency;
     ALCopenslPlayback_unlock(self);
 
     return ret;
diff --git a/Alc/backends/pulseaudio.cpp b/Alc/backends/pulseaudio.cpp
index d0c1c229..9563cdd4 100644
--- a/Alc/backends/pulseaudio.cpp
+++ b/Alc/backends/pulseaudio.cpp
@@ -1213,7 +1213,7 @@ ClockLatency PulsePlayback_getClockLatency(PulsePlayback *self)
     }
     else if(UNLIKELY(neg))
         latency = 0;
-    ret.Latency = (ALint64)minu64(latency, U64(0x7fffffffffffffff)/1000) * 1000;
+    ret.Latency = std::chrono::microseconds{latency};
 
     return ret;
 }
@@ -1714,7 +1714,7 @@ ClockLatency PulseCapture_getClockLatency(PulseCapture *self)
     }
     else if(UNLIKELY(neg))
         latency = 0;
-    ret.Latency = (ALint64)minu64(latency, U64(0x7fffffffffffffff)/1000) * 1000;
+    ret.Latency = std::chrono::microseconds{latency};
 
     return ret;
 }
diff --git a/Alc/backends/wasapi.cpp b/Alc/backends/wasapi.cpp
index e531a9ae..52f324f7 100644
--- a/Alc/backends/wasapi.cpp
+++ b/Alc/backends/wasapi.cpp
@@ -1145,8 +1145,8 @@ ClockLatency ALCwasapiPlayback_getClockLatency(ALCwasapiPlayback *self)
     ALCwasapiPlayback_lock(self);
     ALCdevice *device{STATIC_CAST(ALCbackend, self)->mDevice};
     ret.ClockTime = GetDeviceClockTime(device);
-    ret.Latency = self->mPadding.load(std::memory_order_relaxed) * DEVICE_CLOCK_RES /
-                  device->Frequency;
+    ret.Latency  = std::chrono::seconds{self->mPadding.load(std::memory_order_relaxed)};
+    ret.Latency /= device->Frequency;
     ALCwasapiPlayback_unlock(self);
 
     return ret;