4 files changed, 13 insertions, 8 deletions
diff --git a/alc/backends/sdl2.cpp b/alc/backends/sdl2.cpp
index 29d27c05..4b3b5e63 100644
--- a/alc/backends/sdl2.cpp
+++ b/alc/backends/sdl2.cpp
@@ -133,7 +133,7 @@ ALCenum Sdl2Backend::open(const ALCchar *name)
         mDevice->FmtChans = DevFmtStereo;
     else
     {
-        ERR("Got unhandled SDL channel count: %d\n", (int)have.channels);
+        ERR("Got unhandled SDL channel count: %d\n", int{have.channels});
         return ALC_INVALID_VALUE;
     }
     switch(have.format)
diff --git a/alc/backends/sndio.cpp b/alc/backends/sndio.cpp
index 587f67bb..c7a86670 100644
--- a/alc/backends/sndio.cpp
+++ b/alc/backends/sndio.cpp
@@ -396,7 +396,7 @@ ALCenum SndioCapture::open(const ALCchar *name)
          (mDevice->FmtType == DevFmtUShort && par.bits == 16 && par.sig == 0) ||
          (mDevice->FmtType == DevFmtInt && par.bits == 32 && par.sig != 0) ||
          (mDevice->FmtType == DevFmtUInt && par.bits == 32 && par.sig == 0)) ||
-       mDevice->channelsFromFmt() != (ALsizei)par.rchan ||
+       mDevice->channelsFromFmt() != static_cast<int>(par.rchan) ||
        mDevice->Frequency != par.rate)
     {
         ERR("Failed to set format %s %s %uhz, got %c%u %u-channel %uhz instead\n",
diff --git a/alc/backends/wasapi.cpp b/alc/backends/wasapi.cpp
index ec1ee936..55c95146 100644
--- a/alc/backends/wasapi.cpp
+++ b/alc/backends/wasapi.cpp
@@ -81,6 +81,9 @@ DEFINE_PROPERTYKEY(PKEY_AudioEndpoint_GUID, 0x1da5d803, 0xd492, 0x4edd, 0x8c, 0x
 
 namespace {
 
+inline constexpr REFERENCE_TIME operator "" _reftime(unsigned long long int n) noexcept
+{ return static_cast<REFERENCE_TIME>(n); }
+
 #define MONO SPEAKER_FRONT_CENTER
 #define STEREO (SPEAKER_FRONT_LEFT|SPEAKER_FRONT_RIGHT)
 #define QUAD (SPEAKER_FRONT_LEFT|SPEAKER_FRONT_RIGHT|SPEAKER_BACK_LEFT|SPEAKER_BACK_RIGHT)
@@ -90,7 +93,7 @@ namespace {
 #define X7DOT1 (SPEAKER_FRONT_LEFT|SPEAKER_FRONT_RIGHT|SPEAKER_FRONT_CENTER|SPEAKER_LOW_FREQUENCY|SPEAKER_BACK_LEFT|SPEAKER_BACK_RIGHT|SPEAKER_SIDE_LEFT|SPEAKER_SIDE_RIGHT)
 #define X7DOT1_WIDE (SPEAKER_FRONT_LEFT|SPEAKER_FRONT_RIGHT|SPEAKER_FRONT_CENTER|SPEAKER_LOW_FREQUENCY|SPEAKER_BACK_LEFT|SPEAKER_BACK_RIGHT|SPEAKER_FRONT_LEFT_OF_CENTER|SPEAKER_FRONT_RIGHT_OF_CENTER)
 
-#define REFTIME_PER_SEC ((REFERENCE_TIME)10000000)
+#define REFTIME_PER_SEC 10000000_reftime
 
 #define DEVNAME_HEAD "OpenAL Soft on "
 
@@ -1051,7 +1054,7 @@ HRESULT WasapiPlayback::resetProxy()
     /* Find the nearest multiple of the period size to the update size */
     if(min_per < per_time)
         min_per *= maxi64((per_time + min_per/2) / min_per, 1);
-    min_len = (UINT32)ScaleCeil(min_per, mDevice->Frequency, REFTIME_PER_SEC);
+    min_len = static_cast<UINT32>(ScaleCeil(min_per, mDevice->Frequency, REFTIME_PER_SEC));
     min_len = minu(min_len, buffer_len/2);
 
     mDevice->UpdateSize = min_len;
@@ -1680,7 +1683,7 @@ void WasapiCapture::stopProxy()
 
 
 ALCuint WasapiCapture::availableSamples()
-{ return (ALCuint)mRing->readSpace(); }
+{ return static_cast<ALCuint>(mRing->readSpace()); }
 
 ALCenum WasapiCapture::captureSamples(void *buffer, ALCuint samples)
 {
diff --git a/alc/backends/winmm.cpp b/alc/backends/winmm.cpp
index b6787a24..76e6fe3b 100644
--- a/alc/backends/winmm.cpp
+++ b/alc/backends/winmm.cpp
@@ -245,7 +245,8 @@ retry_open:
     mFormat.nAvgBytesPerSec = mFormat.nSamplesPerSec * mFormat.nBlockAlign;
     mFormat.cbSize = 0;
 
-    MMRESULT res{waveOutOpen(&mOutHdl, DeviceID, &mFormat, (DWORD_PTR)&WinMMPlayback::waveOutProcC,
+    MMRESULT res{waveOutOpen(&mOutHdl, DeviceID, &mFormat,
+        reinterpret_cast<DWORD_PTR>(&WinMMPlayback::waveOutProcC),
         reinterpret_cast<DWORD_PTR>(this), CALLBACK_FUNCTION)};
     if(res != MMSYSERR_NOERROR)
     {
@@ -506,7 +507,8 @@ ALCenum WinMMCapture::open(const ALCchar *name)
     mFormat.nAvgBytesPerSec = mFormat.nSamplesPerSec * mFormat.nBlockAlign;
     mFormat.cbSize = 0;
 
-    MMRESULT res{waveInOpen(&mInHdl, DeviceID, &mFormat, (DWORD_PTR)&WinMMCapture::waveInProcC,
+    MMRESULT res{waveInOpen(&mInHdl, DeviceID, &mFormat,
+        reinterpret_cast<DWORD_PTR>(&WinMMCapture::waveInProcC),
         reinterpret_cast<DWORD_PTR>(this), CALLBACK_FUNCTION)};
     if(res != MMSYSERR_NOERROR)
     {
@@ -590,7 +592,7 @@ ALCenum WinMMCapture::captureSamples(void *buffer, ALCuint samples)
 }
 
 ALCuint WinMMCapture::availableSamples()
-{ return (ALCuint)mRing->readSpace(); }
+{ return static_cast<ALCuint>(mRing->readSpace()); }
 
 } // namespace