From e89978195f3910693958b8faebbd88b4643f8d57 Mon Sep 17 00:00:00 2001
From: Chris Robinson <chris.kcat@gmail.com>
Date: Thu, 23 Apr 2020 06:18:54 -0700
Subject: Clean up some scaling math

---
 alc/alc.cpp | 7 +++----
 1 file changed, 3 insertions(+), 4 deletions(-)

(limited to 'alc/alc.cpp')

diff --git a/alc/alc.cpp b/alc/alc.cpp
index ef534182..df1e9c07 100644
--- a/alc/alc.cpp
+++ b/alc/alc.cpp
@@ -1922,10 +1922,9 @@ static ALCenum UpdateDeviceParams(ALCdevice *device, const ALCint *attrList)
             {
                 freq = maxu(freq, MIN_OUTPUT_RATE);
 
-                device->UpdateSize = (device->UpdateSize*freq + device->Frequency/2) /
-                    device->Frequency;
-                device->BufferSize = (device->BufferSize*freq + device->Frequency/2) /
-                    device->Frequency;
+                const double scale{static_cast<double>(freq) / device->Frequency};
+                device->UpdateSize = static_cast<ALuint>(device->UpdateSize*scale + 0.5);
+                device->BufferSize = static_cast<ALuint>(device->BufferSize*scale + 0.5);
 
                 device->Frequency = freq;
                 device->Flags.set<FrequencyRequest>();
-- 
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