contrib/include/wx/mmedia/sndwin.h

   1 // --------------------------------------------------------------------------
   2 // Name: sndwin.h
   3 // Purpose:
   4 // Date: 08/11/1999
   5 // Author: Guilhem Lavaux <lavaux@easynet.fr> (C) 1999
   6 // CVSID: $Id$
   7 // --------------------------------------------------------------------------
   8 #ifndef _WX_SNDWIN_H
   9 #define _WX_SNDWIN_H
  10
  11 #include "wx/defs.h"
  12 #include "wx/mmedia/defs.h"
  13 #include "wx/mmedia/sndbase.h"
  14
  15 typedef struct _wxSoundInternal wxSoundInternal;
  16 typedef struct _wxSoundInfoHeader wxSoundInfoHeader;
  17
  18 // class WXDLLIMPEXP_MMEDIA wxSoundInternal;
  19 class WXDLLIMPEXP_MMEDIA wxSoundStreamWin : public wxSoundStream {
  20  public:
  21   wxSoundStreamWin();
  22   ~wxSoundStreamWin();
  23
  24   wxSoundStream& Write(const void *buffer, wxUint32 len);
  25   wxSoundStream& Read(void *buffer, wxUint32 len);
  26
  27   bool SetSoundFormat(const wxSoundFormatBase& base);
  28
  29   bool StartProduction(int evt);
  30   bool StopProduction();
  31
  32   bool QueueFilled() const;
  33
  34   // Internal but defined as public
  35   void NotifyDoneBuffer(wxUint32 dev_handle, int flag);
  36
  37   wxUint32 GetBestSize() const { return 4096; }
  38
  39  protected:
  40   wxSoundInternal *m_internal;
  41   wxUint32 m_current_frag_in, m_current_frag_out;
  42   wxUint32 m_input_frag_in, m_output_frag_out;
  43   wxSoundInfoHeader **m_headers_play, **m_headers_rec;
  44
  45   bool m_production_started, m_queue_filled, m_waiting_for;
  46
  47  protected:
  48   void CreateSndWindow();
  49   void DestroySndWindow();
  50   bool OpenDevice(int mode);
  51   void CloseDevice();
  52
  53   wxSoundInfoHeader *AllocHeader(int mode);
  54   void FreeHeader(wxSoundInfoHeader *header, int mode);
  55   bool AllocHeaders(int mode);
  56   void FreeHeaders(int mode);
  57
  58   void WaitFor(wxSoundInfoHeader *info);
  59   bool AddToQueue(wxSoundInfoHeader *info);
  60   void ClearHeader(wxSoundInfoHeader *info);
  61
  62   wxSoundInfoHeader *NextFragmentOutput();
  63   wxSoundInfoHeader *NextFragmentInput();
  64 };
  65
  66 #endif