dsound: Clamp the shifted frequency to [DSBFREQUENCY_MIN, DSBFREQUENCY_MAX].

dlls/dsound/sound3d.c

@@ -312,7 +312,7 @@ void DSOUND_Calc3DBuffer(IDirectSoundBufferImpl *dsb)
 		flFreq = dsb->ds3db_freq * (DEFAULT_VELOCITY/(DEFAULT_VELOCITY + flLimitedVel));
 		TRACE("doppler: Relative velocity (component) = %f => Doppler shift: %ld Hz -> %f Hz\n",
 		      flRelativeVel, dsb->ds3db_freq, flFreq);
-		dsb->freq = flFreq;
+		dsb->freq = max(DSBFREQUENCY_MIN, min(DSBFREQUENCY_MAX, (DWORD)flFreq));
 	}
 
 	DSOUND_RecalcFormat(dsb);

dlls/dsound/tests/ds3d.c

@@ -1450,7 +1450,6 @@ static void test_doppler(GUID *guid, BOOL play)
     check_doppler(dsound, listener, play, DS3DMODE_NORMAL, 0, 0, 1, 240, 22050, 14700);
 
     /* The shifted frequency is limited to DSBFREQUENCY_MAX. */
-    /* Wine TODO: The frequency is not limited. */
     check_doppler(dsound, listener, play, DS3DMODE_NORMAL, 0, 0, 1, -90, 176400, 200000);
 
     IDirectSound3DListener_Release(listener);