src/msw/sound.cpp

   1 /////////////////////////////////////////////////////////////////////////////
   2 // Name:        sound.cpp
   3 // Purpose:     wxSound
   4 // Author:      Julian Smart
   5 // Modified by:
   6 // Created:     04/01/98
   7 // RCS-ID:      $Id$
   8 // Copyright:   (c) Julian Smart
   9 // Licence:     wxWindows licence
  10 /////////////////////////////////////////////////////////////////////////////
  11
  12 #if defined(__GNUG__) && !defined(NO_GCC_PRAGMA)
  13 #pragma implementation "sound.h"
  14 #endif
  15
  16 // For compilers that support precompilation, includes "wx.h".
  17 #include "wx/wxprec.h"
  18
  19 #if defined(__BORLANDC__)
  20 #pragma hdrstop
  21 #endif
  22
  23 #if wxUSE_SOUND
  24
  25 #ifndef WX_PRECOMP
  26 #include "wx/wx.h"
  27 #endif
  28
  29 #include "wx/file.h"
  30 #include "wx/sound.h"
  31 #include "wx/msw/private.h"
  32
  33 #include <windowsx.h>
  34
  35 #include <mmsystem.h>
  36
  37 wxSound::wxSound()
  38   : m_waveData(NULL), m_waveLength(0), m_isResource(false)
  39 {
  40 }
  41
  42 wxSound::wxSound(const wxString& sFileName, bool isResource)
  43   : m_waveData(NULL), m_waveLength(0), m_isResource(isResource)
  44 {
  45   Create(sFileName, isResource);
  46 }
  47
  48 wxSound::wxSound(int size, const wxByte* data)
  49   : m_waveData(NULL), m_waveLength(0), m_isResource(false)
  50 {
  51   Create(size, data);
  52 }
  53
  54 wxSound::~wxSound()
  55 {
  56   Free();
  57 }
  58
  59 bool wxSound::Create(const wxString& fileName, bool isResource)
  60 {
  61   Free();
  62
  63   if (isResource)
  64   {
  65     m_isResource = true;
  66
  67     HRSRC hresInfo;
  68     hresInfo = ::FindResource((HMODULE) wxhInstance, fileName, wxT("WAVE"));
  69     if (!hresInfo)
  70         return false;
  71
  72     HGLOBAL waveData = ::LoadResource((HMODULE) wxhInstance, hresInfo);
  73
  74     if (waveData)
  75     {
  76       m_waveData= (wxByte*)::LockResource(waveData);
  77       m_waveLength = (int) ::SizeofResource((HMODULE) wxhInstance, hresInfo);
  78     }
  79
  80     return (m_waveData ? true : false);
  81   }
  82   else
  83   {
  84     m_isResource = false;
  85
  86     wxFile fileWave;
  87     if (!fileWave.Open(fileName, wxFile::read))
  88         return false;
  89
  90     m_waveLength = (int) fileWave.Length();
  91
  92     m_waveData = (wxByte*)GlobalLock(GlobalAlloc(GMEM_MOVEABLE | GMEM_SHARE, m_waveLength));
  93     if (!m_waveData)
  94         return false;
  95
  96     fileWave.Read(m_waveData, m_waveLength);
  97
  98     return true;
  99   }
 100 }
 101
 102 bool wxSound::Create(int size, const wxByte* data)
 103 {
 104   Free();
 105   m_isResource = true;
 106   m_waveLength=size;
 107   m_waveData = (wxByte*)GlobalLock(GlobalAlloc(GMEM_MOVEABLE | GMEM_SHARE, m_waveLength));
 108   if (!m_waveData)
 109      return false;
 110
 111   for (int i=0; i<size; i++) m_waveData[i] = data[i];
 112   return true;
 113 }
 114
 115 bool wxSound::DoPlay(unsigned flags) const
 116 {
 117   if (!IsOk())
 118     return false;
 119
 120   return (::PlaySound((LPCTSTR)m_waveData, NULL,
 121                       SND_MEMORY | SND_NODEFAULT |
 122                       ((flags & wxSOUND_ASYNC) ? SND_ASYNC : SND_SYNC) |
 123                       ((flags & wxSOUND_LOOP) ? (SND_LOOP | SND_ASYNC) : 0))
 124           != 0);
 125 }
 126
 127 bool wxSound::Free()
 128 {
 129   if (m_waveData)
 130   {
 131 #ifdef __WXWINCE__
 132     HGLOBAL waveData = (HGLOBAL) m_waveData;
 133 #else
 134     HGLOBAL waveData = GlobalHandle(m_waveData);
 135 #endif
 136
 137     if (waveData)
 138     {
 139 #ifndef __WXWINCE__
 140         if (m_isResource)
 141         ::FreeResource(waveData);
 142       else
 143 #endif
 144       {
 145         GlobalUnlock(waveData);
 146         GlobalFree(waveData);
 147       }
 148
 149       m_waveData = NULL;
 150       m_waveLength = 0;
 151       return true;
 152     }
 153   }
 154   return false;
 155 }
 156
 157 /*static*/ void wxSound::Stop()
 158 {
 159     ::PlaySound(NULL, NULL, 0);
 160 }
 161
 162 #endif // wxUSE_SOUND