dlls/winmm/winealsa/alsa.c

   1 /* -*- tab-width: 8; c-basic-offset: 4 -*- */
   2 /*
   3  * Wine Driver for ALSA
   4  *
   5  * Copyright    2002 Eric Pouech
   6  *
   7  * This library is free software; you can redistribute it and/or
   8  * modify it under the terms of the GNU Lesser General Public
   9  * License as published by the Free Software Foundation; either
  10  * version 2.1 of the License, or (at your option) any later version.
  11  *
  12  * This library is distributed in the hope that it will be useful,
  13  * but WITHOUT ANY WARRANTY; without even the implied warranty of
  14  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
  15  * Lesser General Public License for more details.
  16  *
  17  * You should have received a copy of the GNU Lesser General Public
  18  * License along with this library; if not, write to the Free Software
  19  * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307  USA
  20  */
  21
  22 #include "config.h"
  23
  24 #include "windef.h"
  25 #include "winbase.h"
  26 #include "wingdi.h"
  27 #include "winuser.h"
  28 #include "mmddk.h"
  29 #include "alsa.h"
  30
  31 #ifdef HAVE_ALSA
  32
  33 static  struct WINE_ALSA* alsa = NULL;
  34
  35 /**************************************************************************
  36  *                              ALSA_drvOpen                    [internal]
  37  */
  38 static  DWORD   ALSA_drvOpen(LPSTR str)
  39 {
  40     if (alsa)
  41         return 0;
  42
  43     /* I know, this is ugly, but who cares... */
  44     alsa = (struct WINE_ALSA*)1;
  45     return 1;
  46 }
  47
  48 /**************************************************************************
  49  *                              ALSA_drvClose                   [internal]
  50  */
  51 static  DWORD   ALSA_drvClose(DWORD dwDevID)
  52 {
  53     if (alsa) {
  54         alsa = NULL;
  55         return 1;
  56     }
  57     return 0;
  58 }
  59
  60 #endif
  61
  62
  63 /**************************************************************************
  64  *                              DriverProc (WINEALSA.@)
  65  */
  66 LONG CALLBACK   ALSA_DriverProc(DWORD dwDevID, HDRVR hDriv, DWORD wMsg,
  67                                DWORD dwParam1, DWORD dwParam2)
  68 {
  69 /* EPP     TRACE("(%08lX, %04X, %08lX, %08lX, %08lX)\n",  */
  70 /* EPP    dwDevID, hDriv, wMsg, dwParam1, dwParam2); */
  71
  72     switch(wMsg) {
  73 #ifdef HAVE_ALSA
  74     case DRV_LOAD:              ALSA_WaveInit();
  75                                 return 1;
  76     case DRV_FREE:              return 1;
  77     case DRV_OPEN:              return ALSA_drvOpen((LPSTR)dwParam1);
  78     case DRV_CLOSE:             return ALSA_drvClose(dwDevID);
  79     case DRV_ENABLE:            return 1;
  80     case DRV_DISABLE:           return 1;
  81     case DRV_QUERYCONFIGURE:    return 1;
  82     case DRV_CONFIGURE:         MessageBoxA(0, "ALSA MultiMedia Driver !", "ALSA Driver", MB_OK);       return 1;
  83     case DRV_INSTALL:           return DRVCNF_RESTART;
  84     case DRV_REMOVE:            return DRVCNF_RESTART;
  85 #endif
  86     default:
  87         return DefDriverProc(dwDevID, hDriv, wMsg, dwParam1, dwParam2);
  88     }
  89 }