utils/wxMMedia/sndwin.h

   1 // /////////////////////////////////////////////////////////////////////////////
   2 // Name:       sndwin.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_win_H__
  12 #define __SND_win_H__
  13
  14 #include "sndsnd.h"
  15 #include "sndfrag.h"
  16
  17 #ifdef WXMMEDIA_INTERNAL
  18 #include <wx/msw/private.h>
  19 #include <windows.h>
  20 #include <mmsystem.h>
  21
  22 typedef struct wxWinSoundInternal {
  23   HWAVEOUT devout_id;
  24   HWAVEIN devin_id;
  25   HWND sndWin;
  26 } wxWinSoundInternal;
  27
  28 typedef struct wxSndWinInfo {
  29   HGLOBAL h_data, h_hdr;
  30
  31   char *data;
  32   WAVEHDR *hdr;
  33 } wxSndWinInfo;
  34
  35 #endif
  36
  37 /** Sound buffer fragmenter: windows specific implementation
  38   * @author Guilhem Lavaux
  39   */
  40 class wxSndWinFragment : public wxFragmentBuffer {
  41 public:
  42   wxSndWinFragment(wxSound& io_drv);
  43   virtual ~wxSndWinFragment(void);
  44
  45   virtual void AllocIOBuffer(void);
  46   virtual void FreeIOBuffer(void);
  47
  48   virtual bool OnBufferFilled(wxFragBufPtr *ptr, wxSndMode mode);
  49
  50   void WaitForAll();
  51 };
  52
  53 ///
  54 class wxWinSound : public wxSound {
  55   ///
  56   DECLARE_DYNAMIC_CLASS(wxWinSound)
  57 protected:
  58   struct wxWinSoundInternal *internal;
  59
  60   ///
  61   bool wout_opened, win_opened;
  62   ///
  63   wxUint32 curr_o_srate, curr_i_srate;
  64   ///
  65   wxUint8 curr_o_bps, curr_i_bps;
  66   ///
  67   bool curr_o_stereo, curr_i_stereo;
  68   ///
  69   wxSndMode curr_mode;
  70
  71   ///
  72   wxSndWinFragment fragments;
  73
  74 #ifdef WXMMEDIA_INTERNAL
  75   ///
  76   friend LRESULT APIENTRY _EXPORT wxSoundHandlerWndProc(HWND win,
  77                                              UINT message,
  78                                              WPARAM wParam, LPARAM lParam);
  79
  80 #endif
  81
  82 public:
  83   ///
  84   wxWinSound(void);
  85   ///
  86   virtual ~wxWinSound(void);
  87
  88   ///
  89   void OnNeedBuffer(wxSndMode mode);
  90   ///
  91   void StopBuffer(wxSndBuffer& buf);
  92 protected:
  93   ///
  94   virtual bool Wakeup(wxSndBuffer& buf);
  95
  96   ///
  97   bool Reopen(wxSndBuffer& buf, bool force);
  98
  99   ///
 100   friend class wxSndWinFragment;
 101
 102   ///
 103   void PrepareHeader(wxFragmentBuffer::wxFragBufPtr& frag, wxSndMode mode);
 104   ///
 105   void UnprepareHeader(wxFragmentBuffer::wxFragBufPtr& frag, wxSndMode mode);
 106 };
 107
 108 #endif