Fix the render step value for WinMM

1 files changed, 1 insertions, 3 deletions

diff --git a/alc/backends/winmm.cpp b/alc/backends/winmm.cpp
index e0e82283..0fdd8a02 100644
--- a/alc/backends/winmm.cpp
+++ b/alc/backends/winmm.cpp
@@ -181,8 +181,6 @@ FORCE_ALIGN int WinMMPlayback::mixerProc()
     SetRTPriority();
     althrd_setname(MIXER_THREAD_NAME);
 
-    const size_t frame_step{mDevice->bytesFromFmt() * mFormat.nChannels};
-
     while(!mKillNow.load(std::memory_order_acquire)
         && mDevice->Connected.load(std::memory_order_acquire))
     {
@@ -198,7 +196,7 @@ FORCE_ALIGN int WinMMPlayback::mixerProc()
             WAVEHDR &waveHdr = mWaveBuffer[widx];
             if(++widx == mWaveBuffer.size()) widx = 0;
 
-            mDevice->renderSamples(waveHdr.lpData, mDevice->UpdateSize, frame_step);
+            mDevice->renderSamples(waveHdr.lpData, mDevice->UpdateSize, mFormat.nChannels);
             mWritable.fetch_sub(1, std::memory_order_acq_rel);
             waveOutWrite(mOutHdl, &waveHdr, sizeof(WAVEHDR));
         } while(--todo);