Warn about SSE performance with non-multiple-of-4 update sizes

2012-09-11 11:17:41 -07:00
parent 88b0c30152
commit f4642953d4
1 changed files with 6 additions and 0 deletions
@@ -1624,6 +1624,12 @@ static ALCenum UpdateDeviceParams(ALCdevice *device, const ALCint *attrList)
    if(device->Type != Loopback && !device->Hrtf && GetConfigValueBool(NULL, "wide-stereo", AL_FALSE))
        device->Flags |= DEVICE_WIDE_STEREO;

+    if(!device->Hrtf && (device->UpdateSize&3))
+    {
+        if((CPUCapFlags&CPU_CAP_SSE))
+            WARN("SSE performance is degraded with a non-multiple of 4 update size (%u)\n", device->UpdateSize);
+    }
+
    oldMode = SetMixerFPUMode();
    ALCdevice_Lock(device);
    context = device->ContextList;