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Windows/Music.h

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+#ifndef __SKELDAL_MUSIC_
+#define __SKELDAL_MUSIC_
+
+#include "WAPlayer.h"
+
+#define DWORD_PTR DWORD *
+#include <dsound.h>
+
+
+class MusicPlayer: public IWAOutput
+{
+  DWORD _speed;   //speed relative to sampling frequence;
+  bool _stereo;   //true, if stereo
+  bool _bit16;    //true, if 16 bits
+  bool _opened;
+  IDirectSoundBuffer8 *_ds8Buffer;
+  DWORD _lastWritePos;  //last write pos;
+  DWORD _minorpos;
+  int *_linvoltable;
+  DWORD _crossfadebytes;
+  unsigned char _volume;
+  CRITICAL_SECTION _lock;
+  bool _paused;
+
+  DWORD GetSafeXFadePos();
+  
+public:
+  MusicPlayer();
+  ~MusicPlayer();
+
+  HRESULT InitBuffer(IDirectSound8 *ds8, int *linvoltable);
+  HRESULT Play();
+  HRESULT Done();
+  int Open(int samplerate, int numchannels, int bitspersamp, int bufferlenms, int prebufferms);
+  void Close();
+  int Write(const char *buf, int len);
+  int CanWrite();
+  int IsPlaying();
+  void SetVolume(int volume);
+  void SetPan(int pan) {}
+  void Flush(int t) {}
+  int GetOutputTime() {return 1;}
+  int GetWrittenTime() {return 1;}
+  unsigned long AddRef() {return 1;}
+  unsigned long Release() {return 1;}
+  int Pause(int pause);
+  bool IsOpenned() {return _opened;}
+};
+
+#pragma pack (1)
+struct MusFileHeader
+    {
+    short channels;
+    long  freq;
+    long  ssize;
+    long  blocks;
+    long  reserved1;
+    long  reserved2;
+    short ampltable[256];
+    };
+  #pragma pack()
+
+
+class IDecoder
+{
+public:
+  virtual void AttachOutput(IWAOutput *o)=0;
+  virtual bool Play(const char *filename)=0;
+  virtual bool IsPlaying()=0;
+  virtual void Stop()=0;
+  virtual void SetVolume(int volume, int main)=0;
+  virtual bool NotUsingOutput()=0;
+  virtual ~IDecoder() {}
+};
+
+class MusDecoder: public IDecoder
+{
+  MusFileHeader _header;
+  bool _playing;
+  HANDLE _thread;  
+  IWAOutput *_output;
+  HANDLE _file;
+  bool _stop;
+
+
+  static DWORD WINAPI StartMusDecoder(LPVOID data);
+  static DWORD WINAPI StartSilentWritter(LPVOID data);
+  UINT MusDecodingThread();
+  UINT SilentWritterThread();
+public:
+  MusDecoder();
+  ~MusDecoder();
+
+  void AttachOutput(IWAOutput *o);
+
+  bool Play(const char *filename);
+  void Stop();
+  bool IsPlaying() {return _playing;}
+  void SetVolume(int volume, int main) {if (_output) _output->SetVolume(volume);}
+  bool NotUsingOutput() {return false;}
+};
+
+class WinAmpDecoder: public IDecoder, public WAPlayer
+{  
+  IWAOutput *_output;
+  WAInputPlugin *_currPlugin;
+  bool _nooutput;
+public:
+  WinAmpDecoder();
+  ~WinAmpDecoder();
+  
+  void AttachOutput(IWAOutput *o);
+  bool Play(const char *filename);
+  void Stop();
+  bool IsPlaying();
+  void SetVolume(int volume, int main);
+  bool NotUsingOutput() {return _nooutput;}
+};
+
+
+#endif