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/*  Project nGenEx
    Destroyer Studios LLC
    Copyright © 1997-2004. All Rights Reserved.

    SUBSYSTEM:    nGenEx.lib
    FILE:         SoundCard.h
    AUTHOR:       John DiCamillo


    OVERVIEW
    ========
    Abstract Audio Output class (hides details of DirectSound)
*/

#ifndef SoundCard_h
#define SoundCard_h

#include "Types.h"
#include "List.h"
#include "ThreadSync.h"

// +--------------------------------------------------------------------+

class  Sound;
class  Camera;
struct Vec3;

// +--------------------------------------------------------------------+

class SoundCard
{
public:
   static const char* TYPENAME() { return "SoundCard"; }

   SoundCard();
   virtual ~SoundCard();
   
   enum SoundStatus { SC_UNINITIALIZED,
                      SC_OK,
                      SC_ERROR,
                      SC_BAD_PARAM };
   SoundStatus    Status() const { return status; }

   // Format of the sound card's primary buffer:
   virtual bool   GetFormat(LPWAVEFORMATEX format)                { return false; }
   virtual bool   SetFormat(LPWAVEFORMATEX format)                { return false; }
   virtual bool   SetFormat(int bits, int channels, int hertz)    { return false; }
   virtual bool   Pause()                                         { return false; }
   virtual bool   Resume()                                        { return false; }
   virtual bool   StopSoundEffects()                              { return false; }

   // Get a blank, writable sound buffer:
   virtual Sound* CreateSound(DWORD flags, LPWAVEFORMATEX format) { return 0;     }

   // Create a sound resource:
   virtual Sound* CreateSound(DWORD flags, LPWAVEFORMATEX format,
                              DWORD len, LPBYTE data)             { return 0;     }

   // once per frame:
   virtual void   Update();

   virtual void   SetListener(const Camera& cam, const Vec3& vel) { }
   virtual DWORD  UpdateThread();
   virtual void   AddSound(Sound* s);

protected:

   bool           shutdown;
   HANDLE         hthread;
   SoundStatus    status;
   List<Sound>    sounds;
   ThreadSync     sync;
};

#endif SoundCard_h