prj/tech/libsrc/sndutil/strmmain.c

   1 //
   2 // sample C code using sound utilities & LG sound library
   3 //  Pat McElhatton  August 26 '96
   4 //
   5
   6 #include <windows.h>
   7 #include <lg.h>
   8 #include <res.h>
   9 #include <mprintf.h>
  10 #include <stdio.h>
  11 #include <stdlib.h>
  12 #include <lgsound.h>
  13 #include <wappapi.h>
  14 #include <appapi.h>
  15 #include <appagg.h>
  16 #include <utilmain.h>
  17 #include <timelog.h>
  18
  19 #include <sndutil.h>
  20 #include <utilmain.h>
  21
  22 static BOOL donePlaying = FALSE;
  23
  24 static void
  25 endItAll( ISndSample    *pSample,
  26           void          *pCBData )
  27 {
  28    donePlaying = TRUE;
  29
  30    ISndSample_Release( pSample );
  31 }
  32
  33
  34 LRESULT FAR PASCAL WndProc (HWND hWnd, UINT iMessage, WPARAM wParam,
  35     LPARAM lParam)
  36 {
  37     switch (iMessage)
  38     {
  39         case WM_COMMAND:    // process menu items
  40            break ;
  41         case WM_DESTROY:
  42             PostQuitMessage (0) ;
  43             break ;
  44         default:            // default windows message processing
  45             return DefWindowProc (hWnd, iMessage, wParam, lParam) ;
  46     }
  47     return (0L) ;
  48 }
  49
  50
  51 #define APPNAME "stream"
  52
  53 int LGAPI
  54 AppMain( int argc,
  55          const char **argv )
  56 {
  57    ISndMixer      *pMixer;
  58    int            nTimer;
  59    HWND           hWnd ;     // a handle to a message
  60    MSG            msg ;      // a message
  61    WNDCLASS       wndclass ; // the window class
  62    IWinApp        *pWinApp;
  63    HINSTANCE      hInstance;
  64    uchar          *pBuffer;
  65    ISndSample     *pSample;
  66    int32          startOff;
  67
  68    if ( argc < 2 ) {
  69       mprintf("%s\n%s\n",
  70               "USAGE: stream <fname1>   play a file in stream mode",
  71               " if fname does not have an extension, .wav extension is added.");
  72       exit( 1 );
  73    }
  74
  75    TIMELOG_INIT( 8192 );
  76    hInstance = GetModuleHandle( NULL );
  77
  78    // load data into window class struct.
  79    wndclass.style         = CS_HREDRAW | CS_VREDRAW ;
  80    wndclass.lpfnWndProc   = WndProc ;
  81    wndclass.cbClsExtra    = 0 ;
  82    wndclass.cbWndExtra    = 0 ;
  83    wndclass.hInstance     = hInstance ;
  84    wndclass.hIcon         = LoadIcon (hInstance, APPNAME) ;
  85    wndclass.hCursor       = LoadCursor (NULL, IDC_ARROW) ;
  86    wndclass.hbrBackground = GetStockObject (WHITE_BRUSH) ;
  87    wndclass.lpszMenuName  = APPNAME;
  88    wndclass.lpszClassName = APPNAME;
  89
  90    // register the window class
  91    if (!RegisterClass (&wndclass)) {
  92       return FALSE ;
  93    }
  94
  95    hWnd = CreateWindow (       // create the program's window here
  96                         APPNAME,                // class name
  97                         APPNAME,                // window name
  98                         WS_OVERLAPPEDWINDOW,    // window style
  99                         CW_USEDEFAULT,          // x position on screen
 100                         CW_USEDEFAULT,          // y position on screen
 101                         50,                     // width of window
 102                         50,                     // height of window
 103                         NULL,                   // parent window handle (null = none)
 104                         NULL,                   // menu handle (null = class menu)
 105                         hInstance,              // instance handle
 106                         NULL) ;                 // lpstr (null = not used)
 107
 108    pWinApp = AppGetObj( IWinApp );
 109    IWinApp_SetMainWnd( pWinApp, hWnd );
 110    SafeRelease( pWinApp );
 111
 112    ShowWindow (hWnd, SW_SHOW) ;
 113    UpdateWindow (hWnd) ;       // send first WM_PAINT message
 114
 115    pMixer = SoundInit();
 116
 117    //SoundPlayFile( argv[1], pMixer, 127, 64 );
 118    pBuffer = NULL;
 119    pSample = CreateSoundFileStreamer( pMixer, argv[1], pBuffer, 65536, endItAll, NULL );
 120    if ( argc > 2 ) {
 121       startOff = atoi( argv[2] );
 122       ISndSample_SetPosition( pSample, startOff );
 123    }
 124    ISndSample_Play( pSample );
 125
 126    nTimer = SetTimer( hWnd, 1, 60, NULL );  // send timer events every 60 milliseconds
 127    while (GetMessage (&msg, NULL, 0, 0)) {  // the message loop
 128       //mprintf( "message loop\n" );
 129       TranslateMessage( &msg ) ;
 130       SoundRecur( pMixer );
 131       DispatchMessage( &msg ) ;
 132       if ( donePlaying ) {
 133          KillTimer( hWnd, nTimer );
 134          break;
 135       }
 136    }
 137    TIMELOG_DUMP( "sndlog.txt" );
 138    return msg.wParam ;
 139
 140 }
 141
 142 tResult LGAPI AppCreateObjects(int argc, const char * argv[])
 143 {
 144    GenericApplicationCreate( argc, argv, "streamer", NULL );
 145
 146    return NOERROR;
 147 }
 148