utils/wxMMedia/snduss.h

   1 // /////////////////////////////////////////////////////////////////////////////
   2 // Name:       snduss.h
   3 // Purpose:    wxMMedia
   4 // Author:     Guilhem Lavaux
   5 // Created:    1997
   6 // Updated:    1998
   7 // Copyright:  (C) 1997, 1998, Guilhem Lavaux
   8 // License:    wxWindows license
   9 // /////////////////////////////////////////////////////////////////////////////
  10 /* Real -*- C++ -*- */
  11 #ifndef __SND_ussnd_H__
  12 #define __SND_ussnd_H__
  13 #ifdef __GNUG__
  14 #pragma interface
  15 #endif
  16
  17 #include <wx/thread.h>
  18 #include "sndsnd.h"
  19 #include "sndfrag.h"
  20 #include "sndfrmt.h"
  21
  22 ///
  23 class wxUssSound : public wxSound, public wxThread {
  24   ///
  25   DECLARE_DYNAMIC_CLASS(wxUssSound)
  26 public:
  27   wxUssSound();
  28   ///
  29   virtual ~wxUssSound();
  30
  31   ///
  32   void OnNeedBuffer();
  33 protected:
  34   ///
  35   virtual bool Wakeup(wxSndBuffer& buf);
  36   ///
  37   void USS_Sleep();
  38   ///
  39   virtual void StopBuffer(wxSndBuffer& buf);
  40
  41   ///
  42   bool OnSetupDriver(wxSndBuffer& buf, wxSndMode mode);
  43
  44   ///
  45   bool SetupSound(wxUint16 srate, wxUint8 bps, bool stereo);
  46
  47   ///
  48   wxUint32 GetNbFragments();
  49   ///
  50   wxUint32 GetFragmentSize();
  51   ///
  52   void ThreadEntryPoint();
  53
  54 protected:
  55   ///
  56   wxUint16 m_srate;
  57   ///
  58   wxUint8 m_bps;
  59   ///
  60   wxUint32 m_max_bufsize;
  61   ///
  62   bool m_stereo;
  63   ///
  64   wxSndMode m_mode;
  65   ///
  66   wxSoundDataFormat m_ussformat;
  67   ///
  68   wxStreamBuffer *m_sndbuf;
  69   ///
  70   bool m_stop_thrd, m_sleeping;
  71   /// Sound file descriptor.
  72   int m_fd;
  73   /// Thread sleep mutexes and conditions.
  74   wxMutex m_sleep_mtx;
  75   wxCondition m_sleep_cond;
  76
  77   ///
  78   bool InitBuffer(wxSndBuffer *buf);
  79   bool DoInput(wxSndBuffer *buf);
  80   bool DoOutput(wxSndBuffer *buf);
  81
  82   ///
  83   virtual void *Entry();
  84 };
  85
  86 #endif