* Added wxMMedia in the repository so people interrested in it can work on it

* WARNING! It is quite unstable on Windows and it doesn't work on Linux for
  the moment because I didn't finish fixing the CODEC stream.


git-svn-id: https://svn.wxwidgets.org/svn/wx/wxWidgets/trunk@975 c3d73ce0-8a6f-49c7-b76d-6d57e0e08775

utils/wxMMedia/sndfrag.h

@@ -0,0 +1,103 @@
+// /////////////////////////////////////////////////////////////////////////////
+// Name:       sndfrag.h
+// Purpose:    wxMMedia
+// Author:     Guilhem Lavaux
+// Created:    1997
+// Updated:    1998
+// Copyright:  (C) 1997, 1998, Guilhem Lavaux
+// License:    wxWindows license
+// /////////////////////////////////////////////////////////////////////////////
+#ifndef __SND_frag_H__
+#define __SND_frag_H__
+#ifdef __GNUG__
+#pragma interface
+#endif
+
+#ifdef WX_PRECOMP
+#include "wx_prec.h"
+#else
+#include "wx/wx.h"
+#endif
+#include "sndsnd.h"
+
+///
+class wxFragmentBuffer {
+protected:
+  wxSound *m_iodrv;
+
+  ///
+  wxUint8 m_maxoq, m_maxiq;
+
+  ///
+  typedef enum {
+    wxBUFFER_FREE,
+    wxBUFFER_FFILLED,
+    wxBUFFER_TOFREE
+  } BufState;
+public: 
+  ///
+  typedef struct {
+    char *data;
+    ///
+    char *user_data;
+    ///
+    wxUint32 size, ptr;
+    ///
+    wxList *buffers;
+    ///
+    BufState state;
+  } wxFragBufPtr;
+protected:
+  ///
+  wxFragBufPtr *m_optrs, *m_iptrs;
+  ///
+  wxFragBufPtr *m_lstoptrs, *m_lstiptrs;
+  ///
+  bool m_buf2free, m_dontq, m_freeing;
+public:
+  ///
+  wxFragmentBuffer(wxSound& io_drv);
+  ///
+  virtual ~wxFragmentBuffer();
+
+  ///
+  virtual void AllocIOBuffer() = 0;
+  ///
+  virtual void FreeIOBuffer() = 0;
+
+  ///
+  void AbortBuffer(wxSndBuffer *buf);
+  
+  ///
+  wxFragBufPtr *FindFreeBuffer(wxFragBufPtr *list, wxUint8 max_queue);
+  ///
+  bool NotifyOutputBuffer(wxSndBuffer *buf);
+  ///
+  bool NotifyInputBuffer(wxSndBuffer *buf);
+
+  ///
+  void OnBufferFinished(wxFragBufPtr *ptr);
+
+  ///
+  virtual bool OnBufferFilled(wxFragBufPtr *ptr, wxSndMode mode) = 0;
+
+  ///
+  inline wxSndBuffer *LastBuffer() {
+    wxNode *node = m_iodrv->m_buffers.Last();
+
+    if (!node) return NULL;
+    return (wxSndBuffer *)node->Data();
+  }
+  ///
+  inline wxSndBuffer *FirstBuffer() {
+    wxNode *node = m_iodrv->m_buffers.First();
+
+    if (!node) return NULL;
+    return (wxSndBuffer *)node->Data();
+  }
+protected:
+  void FreeBufToFree(bool force = FALSE);
+  void ClearBuffer(wxFragBufPtr *ptr);
+};
+
+#endif