1 files changed, 44 insertions, 0 deletions
diff --git a/Src/Plugins/Output/out_ds/VolCtrl.h b/Src/Plugins/Output/out_ds/VolCtrl.h
new file mode 100644
index 00000000..f7b1a02b
--- /dev/null
+++ b/Src/Plugins/Output/out_ds/VolCtrl.h
@@ -0,0 +1,44 @@
+#ifndef NULLSOFT_OUT_DS_VOLCTRL_H
+#define NULLSOFT_OUT_DS_VOLCTRL_H
+
+#include <windows.h>
+#include <mmsystem.h>
+#include <dsound.h>
+
+class DsVolCtrl
+{
+public:
+	DsVolCtrl(int VolMode, double LogVolMin, bool logfades);
+	void SetFade(__int64 duration, double destvol, double destpan);
+	inline void SetFadeVol(__int64 duration, double destvol) {SetFade(duration, destvol, DestPanHack);}
+	inline void SetFadePan(__int64 duration, double destpan) {SetFade(duration, DestVolHack, destpan);}
+	__int64 RelFade(__int64 max, double destvol);
+	void SetTime(__int64 time);
+	void SetVolume(double vol);
+	void SetPan(double pan);
+	void Apply(IDirectSoundBuffer * pDSB);
+	//		inline double GetCurVol() {return CurVol;}
+	inline double GetDestVol() { return DestVolHack;}
+	inline void Reset() {CurTime = 0;FadeDstTime = -1;}
+	double Stat_GetVolLeft();
+	double Stat_GetVolRight();
+
+	bool Fading();
+
+private:
+	bool IsFading;
+	int VolMode;
+	double LogVolMin;
+
+	double FadeSrcVol, FadeDstVol, FadeSrcPan, FadeDstPan;
+	__int64 FadeSrcTime, FadeDstTime;
+
+	__int64 CurTime;
+
+	double CurVol, CurPan, LastVol, LastPan;
+	double DestVolHack, DestPanHack;
+	bool LogFades;
+	void MapVol(double Vol, double Pan, double &NewVol, double &NewPan);
+};
+
+#endif