Added wxSound for Windows support (successful WAV playback on VC++ 5)

Fixes/Updates for the rest.
PNM decoder uses now wxBufferedInputStream to (to be tested).
Support for G72X is on the road ...


git-svn-id: https://svn.wxwidgets.org/svn/wx/wxWidgets/trunk@3487 c3d73ce0-8a6f-49c7-b76d-6d57e0e08775

utils/wxMMedia2/lib/sndwin.h

@@ -0,0 +1,63 @@
+// --------------------------------------------------------------------------
+// Name: sndwin.h
+// Purpose:
+// Date: 08/11/1999
+// Author: Guilhem Lavaux <lavaux@easynet.fr> (C) 1999
+// CVSID: $Id$
+// --------------------------------------------------------------------------
+#ifndef _WX_SNDWIN_H
+#define _WX_SNDWIN_H
+
+#include <wx/wxprec.h>
+#include "sndbase.h"
+
+typedef struct _wxSoundInternal wxSoundInternal;
+typedef struct _wxSoundInfoHeader wxSoundInfoHeader;
+
+class WXDLLEXPORT wxSoundStreamWin : public wxSoundStream {
+ public:
+  wxSoundStreamWin();
+  ~wxSoundStreamWin();
+
+  wxSoundStream& Write(const void *buffer, size_t len);
+  wxSoundStream& Read(void *buffer, size_t len); 
+
+  bool SetSoundFormat(wxSoundFormatBase& base);
+  void SetDuplexMode(bool on) {}
+
+  bool StartProduction(int evt);
+  bool StopProduction();
+
+  bool QueueFilled() const;
+
+  // Internal but defined as public
+  void NotifyDoneBuffer(wxUint32 dev_handle);
+
+ protected:
+  wxSoundInternal *m_internal;
+  wxUint32 m_current_frag_in, m_current_frag_out;
+  wxUint32 m_input_frag_in, m_output_frag_out;
+  wxSoundInfoHeader **m_headers_play, **m_headers_rec;
+
+  bool m_production_started, m_queue_filled;
+
+ protected:
+  void CreateSndWindow();
+  void DestroySndWindow();
+  bool OpenDevice(int mode);
+  void CloseDevice();
+
+  wxSoundInfoHeader *AllocHeader(int mode);
+  void FreeHeader(wxSoundInfoHeader *header, int mode);
+  bool AllocHeaders(int mode);
+  void FreeHeaders(int mode);
+
+  void WaitFor(wxSoundInfoHeader *info);
+  bool AddToQueue(wxSoundInfoHeader *info);
+  void ClearHeader(wxSoundInfoHeader *info);
+
+  wxSoundInfoHeader *NextFragmentOutput();
+  wxSoundInfoHeader *NextFragmentInput();
+};
+
+#endif